Error running on Hadoop 2.7

[Ashish Pokharel]

Hi All,

We ran into a roadblock in our new Hadoop environment, migrating from 2.6 to 2.7. It was supposed to be an easy lift to get a YARN session but doesnt seem like :) We definitely are using 2.7 binaries but it looks like there is a call here to a private methos which screams runtime incompatibility. 

Anyone has seen this and have pointers?

Thanks, Ashish

Exception in thread "main" java.lang.IllegalAccessError: tried to access method org.apache.hadoop.yarn.client.ConfiguredRMFailoverProxyProvider.getProxyInternal()Ljava/lang/Object; from class org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider
            at org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider.init(RequestHedgingRMFailoverProxyProvider.java:75)
            at org.apache.hadoop.yarn.client.RMProxy.createRMFailoverProxyProvider(RMProxy.java:163)
            at org.apache.hadoop.yarn.client.RMProxy.createRMProxy(RMProxy.java:94)
            at org.apache.hadoop.yarn.client.ClientRMProxy.createRMProxy(ClientRMProxy.java:72)
            at org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.serviceStart(YarnClientImpl.java:187)
            at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.getYarnClient(AbstractYarnClusterDescriptor.java:314)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deployInternal(AbstractYarnClusterDescriptor.java:417)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deploySessionCluster(AbstractYarnClusterDescriptor.java:367)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli.run(FlinkYarnSessionCli.java:679)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:514)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:511)
            at java.security.AccessController.doPrivileged(Native Method)
            at javax.security.auth.Subject.doAs(Subject.java:422)
            at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1698)
            at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli.main(FlinkYarnSessionCli.java:511)

[Piotr Nowojski]

Hi,

Have you replaced all of your old Flink binaries with freshly downloaded Hadoop 2.7 versions? Are you sure that something hasn't mix in the process?

Does some simple word count example works on the cluster after the upgrade?

Piotrek

On 21 Mar 2018, at 16:11, ashish pok <[hidden email]> wrote:

Hi All,

We ran into a roadblock in our new Hadoop environment, migrating from 2.6 to 2.7. It was supposed to be an easy lift to get a YARN session but doesnt seem like :) We definitely are using 2.7 binaries but it looks like there is a call here to a private methos which screams runtime incompatibility. 

Anyone has seen this and have pointers?

Thanks, Ashish

Exception in thread "main" java.lang.IllegalAccessError: tried to access method org.apache.hadoop.yarn.client.ConfiguredRMFailoverProxyProvider.getProxyInternal()Ljava/lang/Object; from class org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider
            at org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider.init(RequestHedgingRMFailoverProxyProvider.java:75)
            at org.apache.hadoop.yarn.client.RMProxy.createRMFailoverProxyProvider(RMProxy.java:163)
            at org.apache.hadoop.yarn.client.RMProxy.createRMProxy(RMProxy.java:94)
            at org.apache.hadoop.yarn.client.ClientRMProxy.createRMProxy(ClientRMProxy.java:72)
            at org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.serviceStart(YarnClientImpl.java:187)
            at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.getYarnClient(AbstractYarnClusterDescriptor.java:314)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deployInternal(AbstractYarnClusterDescriptor.java:417)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deploySessionCluster(AbstractYarnClusterDescriptor.java:367)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli.run(FlinkYarnSessionCli.java:679)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:514)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:511)
            at java.security.AccessController.doPrivileged(Native Method)
            at javax.security.auth.Subject.doAs(Subject.java:422)
            at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1698)
            at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli.main(FlinkYarnSessionCli.java:511)

[Ashish Pokharel]

Hi Piotrek,

Yes, this is a brand new Prod environment. 2.6 was in our lab.

Thanks,

-- Ashish

On Wed, Mar 21, 2018 at 11:39 AM, Piotr Nowojski

<[hidden email]> wrote:

Hi,

Have you replaced all of your old Flink binaries with freshly downloaded Hadoop 2.7 versions? Are you sure that something hasn't mix in the process?

Does some simple word count example works on the cluster after the upgrade?

Piotrek

On 21 Mar 2018, at 16:11, ashish pok <[hidden email]> wrote:

Hi All,

We ran into a roadblock in our new Hadoop environment, migrating from 2.6 to 2.7. It was supposed to be an easy lift to get a YARN session but doesnt seem like :) We definitely are using 2.7 binaries but it looks like there is a call here to a private methos which screams runtime incompatibility. 

Anyone has seen this and have pointers?

Thanks, Ashish

Exception in thread "main" java.lang.IllegalAccessError: tried to access method org.apache.hadoop.yarn.client.ConfiguredRMFailoverProxyProvider.getProxyInternal()Ljava/lang/Object; from class org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider
            at org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider.init(RequestHedgingRMFailoverProxyProvider.java:75)
            at org.apache.hadoop.yarn.client.RMProxy.createRMFailoverProxyProvider(RMProxy.java:163)
            at org.apache.hadoop.yarn.client.RMProxy.createRMProxy(RMProxy.java:94)
            at org.apache.hadoop.yarn.client.ClientRMProxy.createRMProxy(ClientRMProxy.java:72)
            at org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.serviceStart(YarnClientImpl.java:187)
            at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.getYarnClient(AbstractYarnClusterDescriptor.java:314)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deployInternal(AbstractYarnClusterDescriptor.java:417)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deploySessionCluster(AbstractYarnClusterDescriptor.java:367)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli.run(FlinkYarnSessionCli.java:679)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:514)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:511)
            at java.security.AccessController.doPrivileged(Native Method)
            at javax.security.auth.Subject.doAs(Subject.java:422)
            at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1698)
            at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli.main(FlinkYarnSessionCli.java:511)

[Piotr Nowojski]

Hi,

> Does some simple word count example works on the cluster after the upgrade?

If not, maybe your job is pulling some dependency that’s causing this version conflict?

Piotrek

On 21 Mar 2018, at 16:52, ashish pok <[hidden email]> wrote:

Hi Piotrek,

Yes, this is a brand new Prod environment. 2.6 was in our lab.

Thanks,

-- Ashish

On Wed, Mar 21, 2018 at 11:39 AM, Piotr Nowojski

<[hidden email]> wrote:

Hi,

Have you replaced all of your old Flink binaries with freshly downloaded Hadoop 2.7 versions? Are you sure that something hasn't mix in the process?

Does some simple word count example works on the cluster after the upgrade?

Piotrek

On 21 Mar 2018, at 16:11, ashish pok <[hidden email]> wrote:

Hi All,

We ran into a roadblock in our new Hadoop environment, migrating from 2.6 to 2.7. It was supposed to be an easy lift to get a YARN session but doesnt seem like :) We definitely are using 2.7 binaries but it looks like there is a call here to a private methos which screams runtime incompatibility. 

Anyone has seen this and have pointers?

Thanks, Ashish

Exception in thread "main" java.lang.IllegalAccessError: tried to access method org.apache.hadoop.yarn.client.ConfiguredRMFailoverProxyProvider.getProxyInternal()Ljava/lang/Object; from class org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider
            at org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider.init(RequestHedgingRMFailoverProxyProvider.java:75)
            at org.apache.hadoop.yarn.client.RMProxy.createRMFailoverProxyProvider(RMProxy.java:163)
            at org.apache.hadoop.yarn.client.RMProxy.createRMProxy(RMProxy.java:94)
            at org.apache.hadoop.yarn.client.ClientRMProxy.createRMProxy(ClientRMProxy.java:72)
            at org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.serviceStart(YarnClientImpl.java:187)
            at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.getYarnClient(AbstractYarnClusterDescriptor.java:314)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deployInternal(AbstractYarnClusterDescriptor.java:417)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deploySessionCluster(AbstractYarnClusterDescriptor.java:367)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli.run(FlinkYarnSessionCli.java:679)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:514)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:511)
            at java.security.AccessController.doPrivileged(Native Method)
            at javax.security.auth.Subject.doAs(Subject.java:422)
            at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1698)
            at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli.main(FlinkYarnSessionCli.java:511)

[Ashish Pokharel]

Hi Piotrek,

At this point we are simply trying to start a YARN session. 

BTW, we are on Hortonworks HDP 2.6 which is on 2.7 Hadoop if anyone has experienced similar issues. 

We actually pulled 2.6 binaries for the heck of it and ran into same issues. 

I guess we are left with getting non-hadoop binaries and set HADOOP_CLASSPATH then?

-- Ashish

On Wed, Mar 21, 2018 at 12:03 PM, Piotr Nowojski

<[hidden email]> wrote:

Hi,

> Does some simple word count example works on the cluster after the upgrade?

If not, maybe your job is pulling some dependency that’s causing this version conflict?

Piotrek

On 21 Mar 2018, at 16:52, ashish pok <[hidden email]> wrote:

Hi Piotrek,

Yes, this is a brand new Prod environment. 2.6 was in our lab.

Thanks,

-- Ashish

On Wed, Mar 21, 2018 at 11:39 AM, Piotr Nowojski

<[hidden email]> wrote:

Hi,

Have you replaced all of your old Flink binaries with freshly downloaded Hadoop 2.7 versions? Are you sure that something hasn't mix in the process?

Does some simple word count example works on the cluster after the upgrade?

Piotrek

On 21 Mar 2018, at 16:11, ashish pok <[hidden email]> wrote:

Hi All,

We ran into a roadblock in our new Hadoop environment, migrating from 2.6 to 2.7. It was supposed to be an easy lift to get a YARN session but doesnt seem like :) We definitely are using 2.7 binaries but it looks like there is a call here to a private methos which screams runtime incompatibility. 

Anyone has seen this and have pointers?

Thanks, Ashish

Exception in thread "main" java.lang.IllegalAccessError: tried to access method org.apache.hadoop.yarn.client.ConfiguredRMFailoverProxyProvider.getProxyInternal()Ljava/lang/Object; from class org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider
            at org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider.init(RequestHedgingRMFailoverProxyProvider.java:75)
            at org.apache.hadoop.yarn.client.RMProxy.createRMFailoverProxyProvider(RMProxy.java:163)
            at org.apache.hadoop.yarn.client.RMProxy.createRMProxy(RMProxy.java:94)
            at org.apache.hadoop.yarn.client.ClientRMProxy.createRMProxy(ClientRMProxy.java:72)
            at org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.serviceStart(YarnClientImpl.java:187)
            at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.getYarnClient(AbstractYarnClusterDescriptor.java:314)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deployInternal(AbstractYarnClusterDescriptor.java:417)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deploySessionCluster(AbstractYarnClusterDescriptor.java:367)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli.run(FlinkYarnSessionCli.java:679)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:514)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:511)
            at java.security.AccessController.doPrivileged(Native Method)
            at javax.security.auth.Subject.doAs(Subject.java:422)
            at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1698)
            at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli.main(FlinkYarnSessionCli.java:511)

[Till Rohrmann]

Hi Ashish,

the class `RequestHedgingRMFailoverProxyProvider` was only introduced with Hadoop 2.9.0. My suspicion is thus that you start the client with some Hadoop 2.9.0 dependencies on the class path. Could you please check the logs of the client what's on its class path? Maybe you could also share the logs with us. Please also check whether HADOOP_CLASSPATH is set to something suspicious.

Thanks a lot!

Cheers,

Till

On Wed, Mar 21, 2018 at 6:25 PM, ashish pok <[hidden email]> wrote:

Hi Piotrek,

At this point we are simply trying to start a YARN session. 

BTW, we are on Hortonworks HDP 2.6 which is on 2.7 Hadoop if anyone has experienced similar issues. 

We actually pulled 2.6 binaries for the heck of it and ran into same issues. 

I guess we are left with getting non-hadoop binaries and set HADOOP_CLASSPATH then?

-- Ashish

On Wed, Mar 21, 2018 at 12:03 PM, Piotr Nowojski

<[hidden email]> wrote:

Hi,

> Does some simple word count example works on the cluster after the upgrade?

If not, maybe your job is pulling some dependency that’s causing this version conflict?

Piotrek

On 21 Mar 2018, at 16:52, ashish pok <[hidden email]> wrote:

Hi Piotrek,

Yes, this is a brand new Prod environment. 2.6 was in our lab.

Thanks,

-- Ashish

On Wed, Mar 21, 2018 at 11:39 AM, Piotr Nowojski

<[hidden email]> wrote:

Hi,

Have you replaced all of your old Flink binaries with freshly downloaded Hadoop 2.7 versions? Are you sure that something hasn't mix in the process?

Does some simple word count example works on the cluster after the upgrade?

Piotrek

On 21 Mar 2018, at 16:11, ashish pok <[hidden email]> wrote:

Hi All,

We ran into a roadblock in our new Hadoop environment, migrating from 2.6 to 2.7. It was supposed to be an easy lift to get a YARN session but doesnt seem like :) We definitely are using 2.7 binaries but it looks like there is a call here to a private methos which screams runtime incompatibility. 

Anyone has seen this and have pointers?

Thanks, Ashish

Exception in thread "main" java.lang.IllegalAccessError: tried to access method org.apache.hadoop.yarn.client.ConfiguredRMFailoverProxyProvider.getProxyInternal()Ljava/lang/Object; from class org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider
            at org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider.init(RequestHedgingRMFailoverProxyProvider.java:75)
            at org.apache.hadoop.yarn.client.RMProxy.createRMFailoverProxyProvider(RMProxy.java:163)
            at org.apache.hadoop.yarn.client.RMProxy.createRMProxy(RMProxy.java:94)
            at org.apache.hadoop.yarn.client.ClientRMProxy.createRMProxy(ClientRMProxy.java:72)
            at org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.serviceStart(YarnClientImpl.java:187)
            at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.getYarnClient(AbstractYarnClusterDescriptor.java:314)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deployInternal(AbstractYarnClusterDescriptor.java:417)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deploySessionCluster(AbstractYarnClusterDescriptor.java:367)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli.run(FlinkYarnSessionCli.java:679)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:514)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:511)
            at java.security.AccessController.doPrivileged(Native Method)
            at javax.security.auth.Subject.doAs(Subject.java:422)
            at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1698)
            at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli.main(FlinkYarnSessionCli.java:511)

[Kien Truong]

Hi Ashish,

Yeah, we also had this problem before.

It can be solved by recompiling Flink with HDP version of Hadoop according to instruction here:

https://ci.apache.org/projects/flink/flink-docs-release-1.4/start/building.html#vendor-specific-versions

Regards,

Kien

On 3/22/2018 12:25 AM, ashish pok wrote:

Hi Piotrek,

At this point we are simply trying to start a YARN session. 

BTW, we are on Hortonworks HDP 2.6 which is on 2.7 Hadoop if anyone has experienced similar issues. 

We actually pulled 2.6 binaries for the heck of it and ran into same issues. 

I guess we are left with getting non-hadoop binaries and set HADOOP_CLASSPATH then?

-- Ashish

On Wed, Mar 21, 2018 at 12:03 PM, Piotr Nowojski

[hidden email] wrote:

Hi,

> Does some simple word count example works on the cluster after the upgrade?

If not, maybe your job is pulling some dependency that’s causing this version conflict?

Piotrek

On 21 Mar 2018, at 16:52, ashish pok <[hidden email]> wrote:

Hi Piotrek,

Yes, this is a brand new Prod environment. 2.6 was in our lab.

Thanks,

-- Ashish

On Wed, Mar 21, 2018 at 11:39 AM, Piotr Nowojski

<[hidden email]> wrote:

Hi,

Have you replaced all of your old Flink binaries with freshly downloaded Hadoop 2.7 versions? Are you sure that something hasn't mix in the process?

Does some simple word count example works on the cluster after the upgrade?

Piotrek

On 21 Mar 2018, at 16:11, ashish pok <[hidden email]> wrote:

Hi All,

We ran into a roadblock in our new Hadoop environment, migrating from 2.6 to 2.7. It was supposed to be an easy lift to get a YARN session but doesnt seem like :) We definitely are using 2.7 binaries but it looks like there is a call here to a private methos which screams runtime incompatibility. 

Anyone has seen this and have pointers?

Thanks, Ashish

Exception in thread "main" java.lang.IllegalAccessError: tried to access method org.apache.hadoop.yarn.client.ConfiguredRMFailoverProxyProvider.getProxyInternal()Ljava/lang/Object; from class org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider
            at org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider.init(RequestHedgingRMFailoverProxyProvider.java:75)
            at org.apache.hadoop.yarn.client.RMProxy.createRMFailoverProxyProvider(RMProxy.java:163)
            at org.apache.hadoop.yarn.client.RMProxy.createRMProxy(RMProxy.java:94)
            at org.apache.hadoop.yarn.client.ClientRMProxy.createRMProxy(ClientRMProxy.java:72)
            at org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.serviceStart(YarnClientImpl.java:187)
            at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.getYarnClient(AbstractYarnClusterDescriptor.java:314)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deployInternal(AbstractYarnClusterDescriptor.java:417)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deploySessionCluster(AbstractYarnClusterDescriptor.java:367)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli.run(FlinkYarnSessionCli.java:679)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:514)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:511)
            at java.security.AccessController.doPrivileged(Native Method)
            at javax.security.auth.Subject.doAs(Subject.java:422)
            at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1698)
            at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli.main(FlinkYarnSessionCli.java:511)

[Ashish Pokharel]

Hi All,

Looks like we are out of the woods for now (so we think) - we went with Hadoop free version and relied on client libraries on edge node. 

However, I am still not very confident as I started digging into that stack as well and realized what Till pointed out (traces leads to a class that is part of 2.9). I did dig around env variables and nothing was set. This is a brand new clustered installed a week back and our team is literally the first hands on deck. I will fish around and see if Hortonworks back-ported something for HDP (dots are still not completely connected but nonetheless, we have a test session and app running in our brand new Prod)

Thanks, Ashish

On Mar 22, 2018, at 4:47 AM, Till Rohrmann <[hidden email]> wrote:

Hi Ashish,

the class `RequestHedgingRMFailoverProxyProvider` was only introduced with Hadoop 2.9.0. My suspicion is thus that you start the client with some Hadoop 2.9.0 dependencies on the class path. Could you please check the logs of the client what's on its class path? Maybe you could also share the logs with us. Please also check whether HADOOP_CLASSPATH is set to something suspicious.

Thanks a lot!

Cheers,

Till

On Wed, Mar 21, 2018 at 6:25 PM, ashish pok <[hidden email]> wrote:

Hi Piotrek,

At this point we are simply trying to start a YARN session. 

BTW, we are on Hortonworks HDP 2.6 which is on 2.7 Hadoop if anyone has experienced similar issues. 

We actually pulled 2.6 binaries for the heck of it and ran into same issues. 

I guess we are left with getting non-hadoop binaries and set HADOOP_CLASSPATH then?

-- Ashish

On Wed, Mar 21, 2018 at 12:03 PM, Piotr Nowojski

<[hidden email]> wrote:

Hi,

> Does some simple word count example works on the cluster after the upgrade?

If not, maybe your job is pulling some dependency that’s causing this version conflict?

Piotrek

On 21 Mar 2018, at 16:52, ashish pok <[hidden email]> wrote:

Hi Piotrek,

Yes, this is a brand new Prod environment. 2.6 was in our lab.

Thanks,

-- Ashish

On Wed, Mar 21, 2018 at 11:39 AM, Piotr Nowojski

<[hidden email]> wrote:

Hi,

Have you replaced all of your old Flink binaries with freshly downloaded Hadoop 2.7 versions? Are you sure that something hasn't mix in the process?

Does some simple word count example works on the cluster after the upgrade?

Piotrek

On 21 Mar 2018, at 16:11, ashish pok <[hidden email]> wrote:

Hi All,

We ran into a roadblock in our new Hadoop environment, migrating from 2.6 to 2.7. It was supposed to be an easy lift to get a YARN session but doesnt seem like :) We definitely are using 2.7 binaries but it looks like there is a call here to a private methos which screams runtime incompatibility. 

Anyone has seen this and have pointers?

Thanks, Ashish

Exception in thread "main" java.lang.IllegalAccessError: tried to access method org.apache.hadoop.yarn.client.ConfiguredRMFailoverProxyProvider.getProxyInternal()Ljava/lang/Object; from class org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider
            at org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider.init(RequestHedgingRMFailoverProxyProvider.java:75)
            at org.apache.hadoop.yarn.client.RMProxy.createRMFailoverProxyProvider(RMProxy.java:163)
            at org.apache.hadoop.yarn.client.RMProxy.createRMProxy(RMProxy.java:94)
            at org.apache.hadoop.yarn.client.ClientRMProxy.createRMProxy(ClientRMProxy.java:72)
            at org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.serviceStart(YarnClientImpl.java:187)
            at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.getYarnClient(AbstractYarnClusterDescriptor.java:314)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deployInternal(AbstractYarnClusterDescriptor.java:417)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deploySessionCluster(AbstractYarnClusterDescriptor.java:367)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli.run(FlinkYarnSessionCli.java:679)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:514)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:511)
            at java.security.AccessController.doPrivileged(Native Method)
            at javax.security.auth.Subject.doAs(Subject.java:422)
            at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1698)
            at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli.main(FlinkYarnSessionCli.java:511)

[Ken Krugler]

Hi Ashish,

Are you using Flink 1.4? If so, what does the “hadoop classpath” command return from the command line where you’re trying to start the job?

Asking because I’d run into issues with https://issues.apache.org/jira/browse/FLINK-7477, where I had a old version of Hadoop being referenced by the “hadoop" command.

— Ken

On Mar 22, 2018, at 7:05 PM, Ashish Pokharel <[hidden email]> wrote:

Hi All,

Looks like we are out of the woods for now (so we think) - we went with Hadoop free version and relied on client libraries on edge node. 

However, I am still not very confident as I started digging into that stack as well and realized what Till pointed out (traces leads to a class that is part of 2.9). I did dig around env variables and nothing was set. This is a brand new clustered installed a week back and our team is literally the first hands on deck. I will fish around and see if Hortonworks back-ported something for HDP (dots are still not completely connected but nonetheless, we have a test session and app running in our brand new Prod)

Thanks, Ashish

On Mar 22, 2018, at 4:47 AM, Till Rohrmann <[hidden email]> wrote:

Hi Ashish,

the class `RequestHedgingRMFailoverProxyProvider` was only introduced with Hadoop 2.9.0. My suspicion is thus that you start the client with some Hadoop 2.9.0 dependencies on the class path. Could you please check the logs of the client what's on its class path? Maybe you could also share the logs with us. Please also check whether HADOOP_CLASSPATH is set to something suspicious.

Thanks a lot!

Cheers,

Till

On Wed, Mar 21, 2018 at 6:25 PM, ashish pok <[hidden email]> wrote:

Hi Piotrek,

At this point we are simply trying to start a YARN session. 

BTW, we are on Hortonworks HDP 2.6 which is on 2.7 Hadoop if anyone has experienced similar issues. 

We actually pulled 2.6 binaries for the heck of it and ran into same issues. 

I guess we are left with getting non-hadoop binaries and set HADOOP_CLASSPATH then?

-- Ashish

On Wed, Mar 21, 2018 at 12:03 PM, Piotr Nowojski

<[hidden email]> wrote:

Hi,

> Does some simple word count example works on the cluster after the upgrade?

If not, maybe your job is pulling some dependency that’s causing this version conflict?

Piotrek

On 21 Mar 2018, at 16:52, ashish pok <[hidden email]> wrote:

Hi Piotrek,

Yes, this is a brand new Prod environment. 2.6 was in our lab.

Thanks,

-- Ashish

On Wed, Mar 21, 2018 at 11:39 AM, Piotr Nowojski

<[hidden email]> wrote:

Hi,

Have you replaced all of your old Flink binaries with freshly downloaded Hadoop 2.7 versions? Are you sure that something hasn't mix in the process?

Does some simple word count example works on the cluster after the upgrade?

Piotrek

On 21 Mar 2018, at 16:11, ashish pok <[hidden email]> wrote:

Hi All,

We ran into a roadblock in our new Hadoop environment, migrating from 2.6 to 2.7. It was supposed to be an easy lift to get a YARN session but doesnt seem like :) We definitely are using 2.7 binaries but it looks like there is a call here to a private methos which screams runtime incompatibility. 

Anyone has seen this and have pointers?

Thanks, Ashish

Exception in thread "main" java.lang.IllegalAccessError: tried to access method org.apache.hadoop.yarn.client.ConfiguredRMFailoverProxyProvider.getProxyInternal()Ljava/lang/Object; from class org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider
            at org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider.init(RequestHedgingRMFailoverProxyProvider.java:75)
            at org.apache.hadoop.yarn.client.RMProxy.createRMFailoverProxyProvider(RMProxy.java:163)
            at org.apache.hadoop.yarn.client.RMProxy.createRMProxy(RMProxy.java:94)
            at org.apache.hadoop.yarn.client.ClientRMProxy.createRMProxy(ClientRMProxy.java:72)
            at org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.serviceStart(YarnClientImpl.java:187)
            at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.getYarnClient(AbstractYarnClusterDescriptor.java:314)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deployInternal(AbstractYarnClusterDescriptor.java:417)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deploySessionCluster(AbstractYarnClusterDescriptor.java:367)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli.run(FlinkYarnSessionCli.java:679)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:514)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:511)
            at java.security.AccessController.doPrivileged(Native Method)
            at javax.security.auth.Subject.doAs(Subject.java:422)
            at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1698)
            at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli.main(FlinkYarnSessionCli.java:511)

--------------------------------------------

http://about.me/kkrugler

[phone]

[Ashish Pokharel]

Hi Ken,

Yes - we are on 1.4. Thanks for that link - it certainly now explains how things are working :) 

We currently don’t have HADOOP_CLASSPATH env var setup and “hadoop class path” command basically points to HDP2.6 locations (HDP = Hortonworks Data Platform). Best guess I have for this right now is HDP2.6 back ported some 2.9 changes into their distro. This is on my list to get to the bottom of (hopefully no hiccups till prod) - we double checked our Salt Orchestration packages which were used to built the cluster but couldn’t find a reference to hadoop 2.9. For now, we are moving on with our testing to prepare for deployment with hadoop free version which is using hadoop classpath as described in FLINK-7477.  

Thanks, Ashish

On Mar 23, 2018, at 12:31 AM, Ken Krugler <[hidden email]> wrote:

Hi Ashish,

Are you using Flink 1.4? If so, what does the “hadoop classpath” command return from the command line where you’re trying to start the job?

Asking because I’d run into issues with https://issues.apache.org/jira/browse/FLINK-7477, where I had a old version of Hadoop being referenced by the “hadoop" command.

— Ken

On Mar 22, 2018, at 7:05 PM, Ashish Pokharel <[hidden email]> wrote:

Hi All,

Looks like we are out of the woods for now (so we think) - we went with Hadoop free version and relied on client libraries on edge node. 

However, I am still not very confident as I started digging into that stack as well and realized what Till pointed out (traces leads to a class that is part of 2.9). I did dig around env variables and nothing was set. This is a brand new clustered installed a week back and our team is literally the first hands on deck. I will fish around and see if Hortonworks back-ported something for HDP (dots are still not completely connected but nonetheless, we have a test session and app running in our brand new Prod)

Thanks, Ashish

On Mar 22, 2018, at 4:47 AM, Till Rohrmann <[hidden email]> wrote:

Hi Ashish,

the class `RequestHedgingRMFailoverProxyProvider` was only introduced with Hadoop 2.9.0. My suspicion is thus that you start the client with some Hadoop 2.9.0 dependencies on the class path. Could you please check the logs of the client what's on its class path? Maybe you could also share the logs with us. Please also check whether HADOOP_CLASSPATH is set to something suspicious.

Thanks a lot!

Cheers,

Till

On Wed, Mar 21, 2018 at 6:25 PM, ashish pok <[hidden email]> wrote:

Hi Piotrek,

At this point we are simply trying to start a YARN session. 

BTW, we are on Hortonworks HDP 2.6 which is on 2.7 Hadoop if anyone has experienced similar issues. 

We actually pulled 2.6 binaries for the heck of it and ran into same issues. 

I guess we are left with getting non-hadoop binaries and set HADOOP_CLASSPATH then?

-- Ashish

On Wed, Mar 21, 2018 at 12:03 PM, Piotr Nowojski

<[hidden email]> wrote:

Hi,

> Does some simple word count example works on the cluster after the upgrade?

If not, maybe your job is pulling some dependency that’s causing this version conflict?

Piotrek

On 21 Mar 2018, at 16:52, ashish pok <[hidden email]> wrote:

Hi Piotrek,

Yes, this is a brand new Prod environment. 2.6 was in our lab.

Thanks,

-- Ashish

On Wed, Mar 21, 2018 at 11:39 AM, Piotr Nowojski

<[hidden email]> wrote:

Hi,

Have you replaced all of your old Flink binaries with freshly downloaded Hadoop 2.7 versions? Are you sure that something hasn't mix in the process?

Does some simple word count example works on the cluster after the upgrade?

Piotrek

On 21 Mar 2018, at 16:11, ashish pok <[hidden email]> wrote:

Hi All,

We ran into a roadblock in our new Hadoop environment, migrating from 2.6 to 2.7. It was supposed to be an easy lift to get a YARN session but doesnt seem like :) We definitely are using 2.7 binaries but it looks like there is a call here to a private methos which screams runtime incompatibility. 

Anyone has seen this and have pointers?

Thanks, Ashish

Exception in thread "main" java.lang.IllegalAccessError: tried to access method org.apache.hadoop.yarn.client.ConfiguredRMFailoverProxyProvider.getProxyInternal()Ljava/lang/Object; from class org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider
            at org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider.init(RequestHedgingRMFailoverProxyProvider.java:75)
            at org.apache.hadoop.yarn.client.RMProxy.createRMFailoverProxyProvider(RMProxy.java:163)
            at org.apache.hadoop.yarn.client.RMProxy.createRMProxy(RMProxy.java:94)
            at org.apache.hadoop.yarn.client.ClientRMProxy.createRMProxy(ClientRMProxy.java:72)
            at org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.serviceStart(YarnClientImpl.java:187)
            at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.getYarnClient(AbstractYarnClusterDescriptor.java:314)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deployInternal(AbstractYarnClusterDescriptor.java:417)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deploySessionCluster(AbstractYarnClusterDescriptor.java:367)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli.run(FlinkYarnSessionCli.java:679)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:514)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:511)
            at java.security.AccessController.doPrivileged(Native Method)
            at javax.security.auth.Subject.doAs(Subject.java:422)
            at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1698)
            at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli.main(FlinkYarnSessionCli.java:511)

--------------------------------------------

http://about.me/kkrugler

[phone]

[Stephan Ewen]

If you are on Flink 1.4.0 or 1.4.1, please check if you accidentally have Hadoop in your application jar. That can mess up things with child-first classloading. 1.4.2 should handle Hadoop properly in any case.

On Sun, Mar 25, 2018 at 3:26 PM, Ashish Pokharel <[hidden email]> wrote:

Hi Ken,

Yes - we are on 1.4. Thanks for that link - it certainly now explains how things are working :) 

We currently don’t have HADOOP_CLASSPATH env var setup and “hadoop class path” command basically points to HDP2.6 locations (HDP = Hortonworks Data Platform). Best guess I have for this right now is HDP2.6 back ported some 2.9 changes into their distro. This is on my list to get to the bottom of (hopefully no hiccups till prod) - we double checked our Salt Orchestration packages which were used to built the cluster but couldn’t find a reference to hadoop 2.9. For now, we are moving on with our testing to prepare for deployment with hadoop free version which is using hadoop classpath as described in FLINK-7477.  

Thanks, Ashish

On Mar 23, 2018, at 12:31 AM, Ken Krugler <[hidden email]> wrote:

Hi Ashish,

Are you using Flink 1.4? If so, what does the “hadoop classpath” command return from the command line where you’re trying to start the job?

Asking because I’d run into issues with https://issues.apache.org/jira/browse/FLINK-7477, where I had a old version of Hadoop being referenced by the “hadoop" command.

— Ken

On Mar 22, 2018, at 7:05 PM, Ashish Pokharel <[hidden email]> wrote:

Hi All,

Looks like we are out of the woods for now (so we think) - we went with Hadoop free version and relied on client libraries on edge node. 

However, I am still not very confident as I started digging into that stack as well and realized what Till pointed out (traces leads to a class that is part of 2.9). I did dig around env variables and nothing was set. This is a brand new clustered installed a week back and our team is literally the first hands on deck. I will fish around and see if Hortonworks back-ported something for HDP (dots are still not completely connected but nonetheless, we have a test session and app running in our brand new Prod)

Thanks, Ashish

On Mar 22, 2018, at 4:47 AM, Till Rohrmann <[hidden email]> wrote:

Hi Ashish,

the class `RequestHedgingRMFailoverProxyProvider` was only introduced with Hadoop 2.9.0. My suspicion is thus that you start the client with some Hadoop 2.9.0 dependencies on the class path. Could you please check the logs of the client what's on its class path? Maybe you could also share the logs with us. Please also check whether HADOOP_CLASSPATH is set to something suspicious.

Thanks a lot!

Cheers,

Till

On Wed, Mar 21, 2018 at 6:25 PM, ashish pok <[hidden email]> wrote:

Hi Piotrek,

At this point we are simply trying to start a YARN session. 

BTW, we are on Hortonworks HDP 2.6 which is on 2.7 Hadoop if anyone has experienced similar issues. 

We actually pulled 2.6 binaries for the heck of it and ran into same issues. 

I guess we are left with getting non-hadoop binaries and set HADOOP_CLASSPATH then?

-- Ashish

On Wed, Mar 21, 2018 at 12:03 PM, Piotr Nowojski

<[hidden email]> wrote:

Hi,

> Does some simple word count example works on the cluster after the upgrade?

If not, maybe your job is pulling some dependency that’s causing this version conflict?

Piotrek

On 21 Mar 2018, at 16:52, ashish pok <[hidden email]> wrote:

Hi Piotrek,

Yes, this is a brand new Prod environment. 2.6 was in our lab.

Thanks,

-- Ashish

On Wed, Mar 21, 2018 at 11:39 AM, Piotr Nowojski

<[hidden email]> wrote:

Hi,

Have you replaced all of your old Flink binaries with freshly downloaded Hadoop 2.7 versions? Are you sure that something hasn't mix in the process?

Does some simple word count example works on the cluster after the upgrade?

Piotrek

On 21 Mar 2018, at 16:11, ashish pok <[hidden email]> wrote:

Hi All,

We ran into a roadblock in our new Hadoop environment, migrating from 2.6 to 2.7. It was supposed to be an easy lift to get a YARN session but doesnt seem like :) We definitely are using 2.7 binaries but it looks like there is a call here to a private methos which screams runtime incompatibility. 

Anyone has seen this and have pointers?

Thanks, Ashish

Exception in thread "main" java.lang.IllegalAccessError: tried to access method org.apache.hadoop.yarn.client.ConfiguredRMFailoverProxyProvider.getProxyInternal()Ljava/lang/Object; from class org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider
            at org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider.init(RequestHedgingRMFailoverProxyProvider.java:75)
            at org.apache.hadoop.yarn.client.RMProxy.createRMFailoverProxyProvider(RMProxy.java:163)
            at org.apache.hadoop.yarn.client.RMProxy.createRMProxy(RMProxy.java:94)
            at org.apache.hadoop.yarn.client.ClientRMProxy.createRMProxy(ClientRMProxy.java:72)
            at org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.serviceStart(YarnClientImpl.java:187)
            at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.getYarnClient(AbstractYarnClusterDescriptor.java:314)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deployInternal(AbstractYarnClusterDescriptor.java:417)
            at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deploySessionCluster(AbstractYarnClusterDescriptor.java:367)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli.run(FlinkYarnSessionCli.java:679)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:514)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli$1.call(FlinkYarnSessionCli.java:511)
            at java.security.AccessController.doPrivileged(Native Method)
            at javax.security.auth.Subject.doAs(Subject.java:422)
            at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:<a href="tel:1698" value="+491698" target="_blank">1698)
            at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
            at org.apache.flink.yarn.cli.FlinkYarnSessionCli.main(FlinkYarnSessionCli.java:511)

--------------------------------------------

http://about.me/kkrugler

<a href="tel:+1%20530-210-6378" value="[phone]" target="_blank">[phone]

[Ashish Pokharel]

Stephan, we are in 1.4.2.

Thanks,

-- Ashish

On Mon, Mar 26, 2018 at 7:38 AM, Stephan Ewen

<[hidden email]> wrote:

If you are on Flink 1.4.0 or 1.4.1, please check if you accidentally have Hadoop in your application jar. That can mess up things with child-first classloading. 1.4.2 should handle Hadoop properly in any case.

On Sun, Mar 25, 2018 at 3:26 PM, Ashish Pokharel <[hidden email]> wrote:

Hi Ken,

Yes - we are on 1.4. Thanks for that link - it certainly now explains how things are working :) 

We currently don’t have HADOOP_CLASSPATH env var setup and “hadoop class path” command basically points to HDP2.6 locations (HDP = Hortonworks Data Platform). Best guess I have for this right now is HDP2.6 back ported some 2.9 changes into their distro. This is on my list to get to the bottom of (hopefully no hiccups till prod) - we double checked our Salt Orchestration packages which were used to built the cluster but couldn’t find a reference to hadoop 2.9. For now, we are moving on with our testing to prepare for deployment with hadoop free version which is using hadoop classpath as described in FLINK-7477.  

Thanks, Ashish

On Mar 23, 2018, at 12:31 AM, Ken Krugler <[hidden email]> wrote:

Hi Ashish,

Are you using Flink 1.4? If so, what does the “hadoop classpath” command return from the command line where you’re trying to start the job?

Asking because I’d run into issues with https://issues.apache. org/jira/browse/FLINK-7477, where I had a old version of Hadoop being referenced by the “hadoop" command.

— Ken

On Mar 22, 2018, at 7:05 PM, Ashish Pokharel <[hidden email]> wrote:

Hi All,

Looks like we are out of the woods for now (so we think) - we went with Hadoop free version and relied on client libraries on edge node. 

However, I am still not very confident as I started digging into that stack as well and realized what Till pointed out (traces leads to a class that is part of 2.9). I did dig around env variables and nothing was set. This is a brand new clustered installed a week back and our team is literally the first hands on deck. I will fish around and see if Hortonworks back-ported something for HDP (dots are still not completely connected but nonetheless, we have a test session and app running in our brand new Prod)

Thanks, Ashish

On Mar 22, 2018, at 4:47 AM, Till Rohrmann <[hidden email]> wrote:

Hi Ashish,

the class ` RequestHedgingRMFailoverProxyP rovider` was only introduced with Hadoop 2.9.0. My suspicion is thus that you start the client with some Hadoop 2.9.0 dependencies on the class path. Could you please check the logs of the client what's on its class path? Maybe you could also share the logs with us. Please also check whether HADOOP_CLASSPATH is set to something suspicious.

Thanks a lot!

Cheers,

Till

On Wed, Mar 21, 2018 at 6:25 PM, ashish pok <[hidden email]> wrote:

Hi Piotrek,

At this point we are simply trying to start a YARN session. 

BTW, we are on Hortonworks HDP 2.6 which is on 2.7 Hadoop if anyone has experienced similar issues. 

We actually pulled 2.6 binaries for the heck of it and ran into same issues. 

I guess we are left with getting non-hadoop binaries and set HADOOP_CLASSPATH then?

-- Ashish

On Wed, Mar 21, 2018 at 12:03 PM, Piotr Nowojski

<[hidden email]> wrote:

Hi,

> Does some simple word count example works on the cluster after the upgrade?

If not, maybe your job is pulling some dependency that’s causing this version conflict?

Piotrek

On 21 Mar 2018, at 16:52, ashish pok <[hidden email]> wrote:

Hi Piotrek,

Yes, this is a brand new Prod environment. 2.6 was in our lab.

Thanks,

-- Ashish

On Wed, Mar 21, 2018 at 11:39 AM, Piotr Nowojski

<[hidden email]> wrote:

Hi,

Have you replaced all of your old Flink binaries with freshly downloaded Hadoop 2.7 versions? Are you sure that something hasn't mix in the process?

Does some simple word count example works on the cluster after the upgrade?

Piotrek

On 21 Mar 2018, at 16:11, ashish pok <[hidden email]> wrote:

Hi All,

We ran into a roadblock in our new Hadoop environment, migrating from 2.6 to 2.7. It was supposed to be an easy lift to get a YARN session but doesnt seem like :) We definitely are using 2.7 binaries but it looks like there is a call here to a private methos which screams runtime incompatibility. 

Anyone has seen this and have pointers?

Thanks, Ashish

Exception in thread "main" java.lang.IllegalAccessError: tried to access method org.apache.hadoop.yarn.client. ConfiguredRMFailoverProxyProvi der.getProxyInternal()Ljava/la ng/Object; from class org.apache.hadoop.yarn.client. RequestHedgingRMFailoverProxyP rovider
            at org.apache.hadoop.yarn.client. RequestHedgingRMFailoverProxyP rovider.init(RequestHedgingRMF ailoverProxyProvider.java:75)
            at org.apache.hadoop.yarn.client. RMProxy.createRMFailoverProxyP rovider(RMProxy.java:163)
            at org.apache.hadoop.yarn.client. RMProxy.createRMProxy(RMProxy. java:94)
            at org.apache.hadoop.yarn.client. ClientRMProxy.createRMProxy(Cl ientRMProxy.java:72)
            at org.apache.hadoop.yarn.client. api.impl.YarnClientImpl.servic eStart(YarnClientImpl.java: 187)
            at org.apache.hadoop.service.Abst ractService.start(AbstractServ ice.java:193)
            at org.apache.flink.yarn.Abstract YarnClusterDescriptor.getYarnC lient(AbstractYarnClusterDescr iptor.java:314)
            at org.apache.flink.yarn.Abstract YarnClusterDescriptor.deployIn ternal(AbstractYarnClusterDesc riptor.java:417)
            at org.apache.flink.yarn.Abstract YarnClusterDescriptor.deploySe ssionCluster(AbstractYarnClust erDescriptor.java:367)
            at org.apache.flink.yarn.cli.Flin kYarnSessionCli.run(FlinkYarnS essionCli.java:679)
            at org.apache.flink.yarn.cli.Flin kYarnSessionCli$1.call(FlinkYa rnSessionCli.java:514)
            at org.apache.flink.yarn.cli.Flin kYarnSessionCli$1.call(FlinkYa rnSessionCli.java:511)
            at java.security.AccessController .doPrivileged(Native Method)
            at javax.security.auth.Subject.do As(Subject.java:422)
            at org.apache.hadoop.security.Use rGroupInformation.doAs(UserGro upInformation.java:1698)
            at org.apache.flink.runtime.secur ity.HadoopSecurityContext.runS ecured(HadoopSecurityContext. java:41)
            at org.apache.flink.yarn.cli.Flin kYarnSessionCli.main(FlinkYarn SessionCli.java:511)

------------------------------ --------------

http://about.me/kkrugler

[phone]

[Stephan Ewen]

Thanks, in that case it sounds like it is more related to Hadoop classpath mixups, rather than class loading.

On Mon, Mar 26, 2018 at 3:03 PM, ashish pok <[hidden email]> wrote:

Stephan, we are in 1.4.2.

Thanks,

-- Ashish

On Mon, Mar 26, 2018 at 7:38 AM, Stephan Ewen

<[hidden email]> wrote:

If you are on Flink 1.4.0 or 1.4.1, please check if you accidentally have Hadoop in your application jar. That can mess up things with child-first classloading. 1.4.2 should handle Hadoop properly in any case.

On Sun, Mar 25, 2018 at 3:26 PM, Ashish Pokharel <[hidden email]> wrote:

Hi Ken,

Yes - we are on 1.4. Thanks for that link - it certainly now explains how things are working :) 

We currently don’t have HADOOP_CLASSPATH env var setup and “hadoop class path” command basically points to HDP2.6 locations (HDP = Hortonworks Data Platform). Best guess I have for this right now is HDP2.6 back ported some 2.9 changes into their distro. This is on my list to get to the bottom of (hopefully no hiccups till prod) - we double checked our Salt Orchestration packages which were used to built the cluster but couldn’t find a reference to hadoop 2.9. For now, we are moving on with our testing to prepare for deployment with hadoop free version which is using hadoop classpath as described in FLINK-7477.  

Thanks, Ashish

On Mar 23, 2018, at 12:31 AM, Ken Krugler <[hidden email]> wrote:

Hi Ashish,

Are you using Flink 1.4? If so, what does the “hadoop classpath” command return from the command line where you’re trying to start the job?

Asking because I’d run into issues with https://issues.apache. org/jira/browse/FLINK-7477, where I had a old version of Hadoop being referenced by the “hadoop" command.

— Ken

On Mar 22, 2018, at 7:05 PM, Ashish Pokharel <[hidden email]> wrote:

Hi All,

Looks like we are out of the woods for now (so we think) - we went with Hadoop free version and relied on client libraries on edge node. 

However, I am still not very confident as I started digging into that stack as well and realized what Till pointed out (traces leads to a class that is part of 2.9). I did dig around env variables and nothing was set. This is a brand new clustered installed a week back and our team is literally the first hands on deck. I will fish around and see if Hortonworks back-ported something for HDP (dots are still not completely connected but nonetheless, we have a test session and app running in our brand new Prod)

Thanks, Ashish

On Mar 22, 2018, at 4:47 AM, Till Rohrmann <[hidden email]> wrote:

Hi Ashish,

the class ` RequestHedgingRMFailoverProxyP rovider` was only introduced with Hadoop 2.9.0. My suspicion is thus that you start the client with some Hadoop 2.9.0 dependencies on the class path. Could you please check the logs of the client what's on its class path? Maybe you could also share the logs with us. Please also check whether HADOOP_CLASSPATH is set to something suspicious.

Thanks a lot!

Cheers,

Till

On Wed, Mar 21, 2018 at 6:25 PM, ashish pok <[hidden email]> wrote:

Hi Piotrek,

At this point we are simply trying to start a YARN session. 

BTW, we are on Hortonworks HDP 2.6 which is on 2.7 Hadoop if anyone has experienced similar issues. 

We actually pulled 2.6 binaries for the heck of it and ran into same issues. 

I guess we are left with getting non-hadoop binaries and set HADOOP_CLASSPATH then?

-- Ashish

On Wed, Mar 21, 2018 at 12:03 PM, Piotr Nowojski

<[hidden email]> wrote:

Hi,

> Does some simple word count example works on the cluster after the upgrade?

If not, maybe your job is pulling some dependency that’s causing this version conflict?

Piotrek

On 21 Mar 2018, at 16:52, ashish pok <[hidden email]> wrote:

Hi Piotrek,

Yes, this is a brand new Prod environment. 2.6 was in our lab.

Thanks,

-- Ashish

On Wed, Mar 21, 2018 at 11:39 AM, Piotr Nowojski

<[hidden email]> wrote:

Hi,

Have you replaced all of your old Flink binaries with freshly downloaded Hadoop 2.7 versions? Are you sure that something hasn't mix in the process?

Does some simple word count example works on the cluster after the upgrade?

Piotrek

On 21 Mar 2018, at 16:11, ashish pok <[hidden email]> wrote:

Hi All,

We ran into a roadblock in our new Hadoop environment, migrating from 2.6 to 2.7. It was supposed to be an easy lift to get a YARN session but doesnt seem like :) We definitely are using 2.7 binaries but it looks like there is a call here to a private methos which screams runtime incompatibility. 

Anyone has seen this and have pointers?

Thanks, Ashish

Exception in thread "main" java.lang.IllegalAccessError: tried to access method org.apache.hadoop.yarn.client. ConfiguredRMFailoverProxyProvi der.getProxyInternal()Ljava/la ng/Object; from class org.apache.hadoop.yarn.client. RequestHedgingRMFailoverProxyP rovider
            at org.apache.hadoop.yarn.client. RequestHedgingRMFailoverProxyP rovider.init(RequestHedgingRMF ailoverProxyProvider.java:75)
            at org.apache.hadoop.yarn.client. RMProxy.createRMFailoverProxyP rovider(RMProxy.java:163)
            at org.apache.hadoop.yarn.client. RMProxy.createRMProxy(RMProxy. java:94)
            at org.apache.hadoop.yarn.client. ClientRMProxy.createRMProxy(Cl ientRMProxy.java:72)
            at org.apache.hadoop.yarn.client. api.impl.YarnClientImpl.servic eStart(YarnClientImpl.java: 187)
            at org.apache.hadoop.service.Abst ractService.start(AbstractServ ice.java:193)
            at org.apache.flink.yarn.Abstract YarnClusterDescriptor.getYarnC lient(AbstractYarnClusterDescr iptor.java:314)
            at org.apache.flink.yarn.Abstract YarnClusterDescriptor.deployIn ternal(AbstractYarnClusterDesc riptor.java:417)
            at org.apache.flink.yarn.Abstract YarnClusterDescriptor.deploySe ssionCluster(AbstractYarnClust erDescriptor.java:367)
            at org.apache.flink.yarn.cli.Flin kYarnSessionCli.run(FlinkYarnS essionCli.java:679)
            at org.apache.flink.yarn.cli.Flin kYarnSessionCli$1.call(FlinkYa rnSessionCli.java:514)
            at org.apache.flink.yarn.cli.Flin kYarnSessionCli$1.call(FlinkYa rnSessionCli.java:511)
            at java.security.AccessController .doPrivileged(Native Method)
            at javax.security.auth.Subject.do As(Subject.java:422)
            at org.apache.hadoop.security.Use rGroupInformation.doAs(UserGro upInformation.java:1698)
            at org.apache.flink.runtime.secur ity.HadoopSecurityContext.runS ecured(HadoopSecurityContext. java:41)
            at org.apache.flink.yarn.cli.Flin kYarnSessionCli.main(FlinkYarn SessionCli.java:511)

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