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Kafka high IO wait on certain nodes - Kafka - [mail # user]
...Hi,I'm running a 9 node Kafka 0.10.2.1 cluster in AWS and 3-4 of the nodesexperience high IO wait but others don't.In terms read/write load, the high IO nodes look identical to others. Allno...
   Author: XiaoChuan Yu , 2018-04-05, 03:09
Dependency Injection and Flink - Flink - [mail # user]
...Hi,I'm evaluating Flink with the intent to integrate it into a Java projectthat uses a lot of dependency injection via Guice. What would be the bestway to work with DI/Guice given that injec...
   Author: XiaoChuan Yu , 2018-03-13, 18:30
Kafka 0.10.1.1 clients crash after node restart - Kafka - [mail # user]
...Hi,We ran into a problem where clients crash after we restarted a node usingkill -15 and then starting it using  (broker 1001).2 of the brokers including 1001 also can't sync with each ...
   Author: XiaoChuan Yu , 2017-11-08, 17:40
Samza 13.1 and Kafka 1.0 - Samza - [mail # dev]
...Hi,Does anyone know if Samza 13.1 is compatible with Kafka 1.0?Thanks,Xiaochuan Yu...
   Author: XiaoChuan Yu , 2017-11-04, 21:21
Exit code 248 from YARN and InterruptedException - Samza - [mail # dev]
...Hi,I'm trying to debug some problem with a Samza job that loads data from aCassandra database into Kafka via a custom System implementation.The System makes use of BlockingEnvelopeMap.What I...
   Author: XiaoChuan Yu , 2017-10-30, 16:14
[expand - 2 more] - Samza Job Slow to Restart - Samza - [mail # dev]
...Hi,We were finally able to find out why the job takes so long to start.There was higher than normal network IO during job startup and so wechecked size of the checkpoint topic on disk and it...
   Author: XiaoChuan Yu , 2017-10-19, 19:14
Historical container logs in YARN UI - Samza - [mail # dev]
...Hi,Is there a way to view historical container logs in YARN UI?When I try view historical logs from YARN UI right now I get the followmessage:Failed while trying to construct the redirect ur...
   Author: XiaoChuan Yu , 2017-09-30, 20:08
[expand - 1 more] - Deploying Samza Jobs Using S3 and YARN on AWS - Samza - [mail # dev]
...I found out that it was necessary to include "hadoop-aws" as a part of thepackage submitted to YARN similar to the instructions for deploying fromHDFS.However, due to a dependency conflict o...
   Author: XiaoChuan Yu , 2017-09-23, 22:24
[expand - 1 more] - Kafka 0.10.2 compatibility with Samza 0.13.1 - Samza - [mail # dev]
...Hi Yi,Thanks for all the suggestions.Our team eventually decided to move off CDH Kafka(and YARN) due to someissues not relevant to Samza.For what its worth, I did test the a couple basic Hel...
   Author: XiaoChuan Yu , 2017-09-14, 15:11
[expand - 1 more] - Custom ordering when using async - Samza - [mail # dev]
...Hi Jagadish,This is a rather late reply but I don't think I understand of the effect ofchanging job.container.thread.pool.size config in the synchronous case verywell.Suppose I have an input...
   Author: XiaoChuan Yu , 2017-08-26, 00:02