Understanding watermark

2020-01-13 Thread Cam Mach
never get watermarks and we are confused as to what we are seeing and what we should expect Cam Mach Software Engineer E-mail: cammac...@gmail.com Tel: 206 972 2768

Re: Why available task slots are not leveraged for pipeline?

2019-08-12 Thread Cam Mach
0, it generates 60 sub-tasks for each operator. And so it'll be too much for one slot execute at least 60 sub-tasks. I am wondering if there is a way we can set number of generated sub-tasks, different than number of parallelism? Cam Mach Software Engineer E-mail: cammac...@gmail.com Tel: 20

Re: Why Job Manager die/restarted when Task Manager die/restarted?

2019-08-12 Thread Cam Mach
ou job is >> configured with no restart retry, a TM failure can cause the job to be >> FAILED. >> 2. JM lost HA leadership, e.g. lost connection to ZK >> 3. encounters other unexpected fatal errors. In this case we need to >> check the log to see what happens then >

Why available task slots are not leveraged for pipeline?

2019-08-11 Thread Cam Mach
Hello Flink expert, I have a cluster with 10 Task Managers, configured with 6 task slot each, and a pipeline that has 13 tasks/operators with parallelism of 5. But when running the pipeline I observer that only 5 slots are being used, the other 55 slots are available/free. It should use all of my

Why Job Manager die/restarted when Task Manager die/restarted?

2019-08-11 Thread Cam Mach
Hello Flink experts, We are running Flink under Kubernetes and see that Job Manager die/restarted whenever Task Manager die/restarted or couldn't get connected each other. Is there any specific configurations/parameters that we need to turn on to stop this? Or this is expected? Thanks, Cam

Re: Capping RocksDb memory usage

2019-08-09 Thread Cam Mach
nfiguration for TaskExecutors" can >> give some information here >> >> [1] >> http://apache-flink-mailing-list-archive.1008284.n3.nabble.com/DISCUSS-FLIP-49-Unified-Memory-Configuration-for-TaskExecutors-td31436.html >> Best, >> Congxian >> >> >

Re: Capping RocksDb memory usage

2019-08-08 Thread Cam Mach
er column family, and the write > buffer number increase when more column families created. > > > [1] https://issues.apache.org/jira/browse/FLINK-7289 > [2] https://github.com/dataArtisans/frocksdb/pull/4 > > Best > Yun Tang > > > -- > *Fro

Re: Capping RocksDb memory usage

2019-08-08 Thread Cam Mach
n-RocksDB > 2. > https://ci.apache.org/projects/flink/flink-docs-master/ops/state/large_state_tuning.html#tuning-rocksdb > > Thanks, > Biao /'bɪ.aʊ/ > > > > On Thu, Aug 8, 2019 at 11:44 AM Cam Mach wrote: > >> Yes, that is correct. >> Cam Mach >

Re: Capping RocksDb memory usage

2019-08-07 Thread Cam Mach
Yes, that is correct. Cam Mach Software Engineer E-mail: cammac...@gmail.com Tel: 206 972 2768 On Wed, Aug 7, 2019 at 8:33 PM Biao Liu wrote: > Hi Cam, > > Do you mean you want to limit the memory usage of RocksDB state backend? > > Thanks, > Biao /'bɪ.aʊ/ > > &g

Capping RocksDb memory usage

2019-08-07 Thread Cam Mach
Hello everyone, What is the most easy and efficiently way to cap RocksDb's memory usage? Thanks, Cam

link best configurations for Production

2019-07-07 Thread Cam Mach
ources is not a constraints (since we're running Flink on AWS's Kubernetes) Appreciate if you can help or give us some pointers. Thanks, Cam Mach

Flink best configurations for Production

2019-07-06 Thread Cam Mach
ources is not a constraints (since we're running Flink on AWS's Kubernetes) Appreciate if you can help or give us some pointers. Thanks, Cam Mach