in order to use epoll (tasker.network.netty.transport: epoll), is it required that linux version is 4.0.16 or newer or not

[makeyang]

my flink veriso is 1.4.2
my jdk version is 1.8.0.20
my linux version is:3.10.0

I try to use epoll with setting: tasker.network.netty.transport: epoll
but it throws excption which leads me here:
https://github.com/apache/flink-shaded/issues/30
I followed the instruction and still exception throws.
then I found below link Native transports whic is offical netty doc below:
http://netty.io/wiki/native-transports.html
and it says:
Netty provides the following platform specific JNI transports:
    Linux (since 4.0.16)

so my question is:
in order to use this epoll,  is it required that linux version is 4.0.16 or
newer or not?





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[Ted Yu]

I think you should upgrade Linux to said version or newer.

Cheers

On Fri, Apr 20, 2018 at 6:35 AM, makeyang <[hidden email]> wrote:

my flink veriso is 1.4.2
my jdk version is 1.8.0.20
my linux version is:3.10.0

I try to use epoll with setting: tasker.network.netty.transport: epoll
but it throws excption which leads me here:
https://github.com/apache/flink-shaded/issues/30
I followed the instruction and still exception throws.
then I found below link Native transports whic is offical netty doc below:
http://netty.io/wiki/native-transports.html
and it says:
Netty provides the following platform specific JNI transports:
    Linux (since 4.0.16)

so my question is:
in order to use this epoll,  is it required that linux version is 4.0.16 or
newer or not?





--
Sent from: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/

[Kien Truong]

Hi,

The number 4.0.16 refer to netty version, not the Linux kernel version

Regards,

Kien

Sent from TypeApp

On Apr 20, 2018, at 21:45, Ted Yu <[hidden email]> wrote:

I think you should upgrade Linux to said version or newer.

Cheers

On Fri, Apr 20, 2018 at 6:35 AM, makeyang <[hidden email]> wrote:

my flink veriso is 1.4.2
my jdk version is 1.8.0.20
my linux version is:3.10.0

I try to use epoll with setting: tasker.network.netty. transport: epoll
but it throws excption which leads me here:
https://github.com/apache/flink-shaded/issues/30
I followed the instruction and still exception throws.
then I found below link Native transports whic is offical netty doc below:
http://netty.io/wiki/native-transports.html
and it says:
Netty provides the following platform specific JNI transports:
    Linux (since 4.0.16)

so my question is:
in order to use this epoll,  is it required that linux version is 4.0.16 or
newer or not?





--
Sent from: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/