Lot of RocksDB files in tmp Directory

[Dominique Rondé-2]

Hi @ll,

we just change the backend from filesystem to RocksDB. Since that time (3 Days) we got 451 files with 1.8 GB stored in the tmp-Directory. All files are named librocksdb*.so

Did we something wrong or is it a Bug?

Greets

Dominique 

Von meinem Samsung Gerät gesendet.

[施晓罡(星罡)]

RocksDB is orginally  implemented in C. To use it in Java, Flink uses a RocksDB jar with JNI techniques. 

Whenever a Flink job starts, the RocksDB libraries will be loaded. The file named librocksdb*.so will be extracted from the RocksDB jar and will be put in the tmp directory. So I think you have run Flink jobs many many times in the three days to get those 451 files.

I don’t think the numerous files are a big problem because they are located in the tmp directory and  they can be automatically cleaned by OS.

在 2016年11月7日，上午8:24，Dominique Rondé <[hidden email]> 写道：

Hi @ll,

we just change the backend from filesystem to RocksDB. Since that time (3 Days) we got 451 files with 1.8 GB stored in the tmp-Directory. All files are named librocksdb*.so

Did we something wrong or is it a Bug?

Greets

Dominique 

Von meinem Samsung Gerät gesendet.