Re: Need help using AggregateFunction instead of FoldFunction

Hi dev, The time of the window may have different semantics. In the session window, it's only a time gap, the size of the window is driven via activity events. In the tumbling or sliding window, it means the size of the window. For more details, please see the official documentation.[1] Best, Vi

Re: Flink 'Job Cluster' mode Ui Access

Hi, I have checked the logs with this keyword *StaticFileServerHandler *in it, But there were no logs coming for "Flink Job Cluster". Then i checked for Flink Session Cluster, i was able to find the logs for the *StaticFileServerHandler *keyword. Can i raise this as bug ? Best Regards, Jatin

Re: [DISCUSS] Adding e2e tests for Flink's Mesos integration

Thanks Yangze for starting this discussion. Just share my thoughts. If the mesos official docker image could not meet our requirement, i suggest to build the image locally. We have done the same things for yarn e2e tests. This way is more flexible and easy to maintain. However, i have no idea how

Re: KeyBy/Rebalance overhead?

Hi Komal, KeyBy(Hash Partition, logically partition) and rebalance(physical partition) are both one of the partitions been supported by Flink.[1] Generally speaking, partitioning may cause network communication(network shuffles) costs which may cause more time cost. The example provided by you ma

Sample Code for querying Flink's default metrics

Hello, Using Flink on Yarn, I could not understand the documentation for how to read the default metrics via code. In particular, I want to read throughput, i.e. CPU usage, Task/Operator's numRecordsOutPerSecond, and Memory. Is there any sample code for how to read such default metrics? Is there

Re: User program failures cause JobManager to be shutdown

Hi Robert and Roman, Yeah, letting users know System.exit() is called would be much more appropriate than just intercepting and ignoring. Best, Dongwon On Sat, Dec 7, 2019 at 11:29 PM Robert Metzger wrote: > I guess we could manage the security only when calling the user's main() > method. > >

Re: KeyBy/Rebalance overhead?

Anyone? On Fri, 6 Dec 2019 at 19:07, Komal Mariam wrote: > Hello everyone, > > I want to get some insights on the KeyBy (and Rebalance) operations as > according to my understanding they partition our tasks over the defined > parallelism and thus should make our pipeline faster. > > I am reading

[ANNOUNCE] Weekly Community Update 2019/49

Dear community, happy to share this week's community digest with an update on Flink 1.8.3, a revival of the n-ary stream operator, a proposal to move our build infrastructure to Azure pipelines, and quite a few other topics. Enjoy. Flink Development == * [releases] The feature freeze

Re: Emit intermediate accumulator state of a session window

Hi Chandu, Maybe you can use a custom trigger: * .trigger(**ContinuousEventTimeTrigger.of(Time.minutes(15)))* This would continuously trigger your aggregate every period of time. Thanks, Rafi On Thu, Dec 5, 2019 at 1:09 PM Andrey Zagrebin wrote: > Hi Chandu, > > I am not sure whether usi

Change Flink binding address in local mode

Hi, Flink (or some of its services) listens on three random TCP ports during the local[1] execution, e.g., 39951, 41009 and 42849. [1]: https://ci.apache.org/projects/flink/flink-docs-stable/dev/local_execution.html#local-environment The sockets listens on `0.0.0.0` and since I need to run some

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