Re: [Question]Test failed in cluster mode

2015-05-13 Thread Andra Lungu
Hi Yi, The problem here, as Stephan already suggested, is that you have a very large job. Each complex operation (join, coGroup, etc) needs a share of memory. In Flink, for the test cases at least, they restrict the TaskManagers' memory to just 80MB in order to run multiple tests in parallel on Tr

Re: Hello Everyone

2015-05-13 Thread Aljoscha Krettek
@Robert, this seems like a problem with the Shading? On Thu, May 14, 2015 at 5:41 AM, Lokesh Rajaram wrote: > Thanks Aljioscha. I was able to change as recommended and able to run the > entire test suite in local successfully. > However Travis build is failing for pull request: > https://github.c

Re: Hello Everyone

2015-05-13 Thread Lokesh Rajaram
Thanks Aljioscha. I was able to change as recommended and able to run the entire test suite in local successfully. However Travis build is failing for pull request: https://github.com/apache/flink/pull/673. It's a compilation failure: [ERROR] Failed to execute goal org.apache.maven.plugins:maven-

Re: [Question]Test failed in cluster mode

2015-05-13 Thread Stephan Ewen
You are probably starting the system with very little memory, or you have an immensely large job. Have a look here, I think this discussion on the user mailing list a few days ago is about the same issue: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Memory-exception-td1206.h

Re: [Question]Test failed in cluster mode

2015-05-13 Thread Yi ZHOU
Hello , Thank @Stephan for the explanations. Though I with these information, I still have no clue to trace the error. Now, the exception stack in the *cluster mode* always looks like this (even I set env.setParallelism(1)): org.apache.flink.runtime.client.JobExecutionException: Job execu

Re: New project website

2015-05-13 Thread Stephan Ewen
That is a good thing to have, agreed. On Wed, May 13, 2015 at 5:13 PM, Henry Saputra wrote: > For me personally, would like to still keep the architecture image [1] > to show how it interacts with other systems. > > This usually help people to see how Flink could fit into their > existing infras

Re: New project website

2015-05-13 Thread Henry Saputra
For me personally, would like to still keep the architecture image [1] to show how it interacts with other systems. This usually help people to see how Flink could fit into their existing infrastructure pieces. - Henry [1] http://flink.apache.org/img/WhatIsFlink.png On Tue, May 12, 2015 at 1:5

Re: Flink Benchmark: comparing flink's performance in different environments

2015-05-13 Thread Tobias Wiens
Hi Robert, thank you for your reply. Yes I read on the mailing list about it, very nice that you maintain it as part of the flink project now. I might swap to use those dockerfiles. Thank you for that tip, I will look more into the TPC-* direction. You are right I expect some impact in reading a

[jira] [Created] (FLINK-2011) Improve error message when user-defined serialization logic is wrong

2015-05-13 Thread Stephan Ewen (JIRA)
Stephan Ewen created FLINK-2011: --- Summary: Improve error message when user-defined serialization logic is wrong Key: FLINK-2011 URL: https://issues.apache.org/jira/browse/FLINK-2011 Project: Flink

[jira] [Created] (FLINK-2010) Add test that verifies that chained tasks are properly checkpointed

2015-05-13 Thread Stephan Ewen (JIRA)
Stephan Ewen created FLINK-2010: --- Summary: Add test that verifies that chained tasks are properly checkpointed Key: FLINK-2010 URL: https://issues.apache.org/jira/browse/FLINK-2010 Project: Flink

[jira] [Created] (FLINK-2009) Time-Based Windows fail with Chaining Disabled

2015-05-13 Thread Aljoscha Krettek (JIRA)
Aljoscha Krettek created FLINK-2009: --- Summary: Time-Based Windows fail with Chaining Disabled Key: FLINK-2009 URL: https://issues.apache.org/jira/browse/FLINK-2009 Project: Flink Issue Type

Re: Planning the 0.9 Release

2015-05-13 Thread Robert Metzger
+1 for cutting a release soon. The planning document looks reasonable .. On Wed, May 13, 2015 at 1:37 PM, Stephan Ewen wrote: > Hi Squirrels! > > I think it is time we started finalizing the the 0.9 release. The latest > milestone is a few weeks old and given the sheer amount of new features a

Planning the 0.9 Release

2015-05-13 Thread Stephan Ewen
Hi Squirrels! I think it is time we started finalizing the the 0.9 release. The latest milestone is a few weeks old and given the sheer amount of new features and the big interest in Flink these days, we should publish the next release rather soon in my opinion. There are a few issues that we nee

Re: [DISCUSS] Access to Time and Window in Streaming Operations

2015-05-13 Thread Bruno Cadonna
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi, Aljoscha originally wanted to discuss whether it is necessary to make information about the event time of an element and information about windows in which it resides accessible to the user. I guess, we all agree that this information is neces

Re: Flink's multi-user support

2015-05-13 Thread Maximilian Michels
Yes, should be possible to implement both independently. On Wed, May 13, 2015 at 11:41 AM, Stephan Ewen wrote: > On first thought, the sessions and the multi-job vs. job queue question are > almost two separate issues. > > Can you add the sessions without removing the concurrent jobs we currentl

Re: [DISCUSS] Access to Time and Window in Streaming Operations

2015-05-13 Thread Stephan Ewen
Okay, I thought that this thread is about how to make timestamps and window information of a record accessible to the user code. This involves how represent the information in which window a record is, whether to attach it to that records, etc The semantics of what happens if you have multiple win

Re: Flink's multi-user support

2015-05-13 Thread Stephan Ewen
On first thought, the sessions and the multi-job vs. job queue question are almost two separate issues. Can you add the sessions without removing the concurrent jobs we currently have? On Wed, May 13, 2015 at 10:34 AM, Maximilian Michels wrote: > I think we can agree that real multi-user suppor

Re: [DISCUSS] Access to Time and Window in Streaming Operations

2015-05-13 Thread Gyula Fóra
I think this is that thread :) But as I said it is just a matter of what we want to add, and we can already do it. On Wed, May 13, 2015 at 11:37 AM, Stephan Ewen wrote: > This is a pretty central question, actually (timestamping the results of > windows). Let us kick off a separate thread for t

Re: [DISCUSS] Access to Time and Window in Streaming Operations

2015-05-13 Thread Stephan Ewen
This is a pretty central question, actually (timestamping the results of windows). Let us kick off a separate thread for this... On Wed, May 13, 2015 at 9:20 AM, Bruno Cadonna < cado...@informatik.hu-berlin.de> wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA1 > > Hi, > > I think timestamp

[jira] [Created] (FLINK-2008) PersistentKafkaSource is sometimes emitting tuples multiple times

2015-05-13 Thread Robert Metzger (JIRA)
Robert Metzger created FLINK-2008: - Summary: PersistentKafkaSource is sometimes emitting tuples multiple times Key: FLINK-2008 URL: https://issues.apache.org/jira/browse/FLINK-2008 Project: Flink

[jira] [Created] (FLINK-2007) Initial data point in Delta function needs to be serializable

2015-05-13 Thread JIRA
Márton Balassi created FLINK-2007: - Summary: Initial data point in Delta function needs to be serializable Key: FLINK-2007 URL: https://issues.apache.org/jira/browse/FLINK-2007 Project: Flink

Re: Flink's multi-user support

2015-05-13 Thread Maximilian Michels
I think we can agree that real multi-user support in Flink (standalone) is neither desirable, because there are already sophisticated solutions out there (YARN or Mesos), nor feasible because it is a lot of work to get it right. At the current state of affairs, resource sharing between two users s

[jira] [Created] (FLINK-2006) TaskManagerTest.testRunJobWithForwardChannel:432 expected: but was:

2015-05-13 Thread Robert Metzger (JIRA)
Robert Metzger created FLINK-2006: - Summary: TaskManagerTest.testRunJobWithForwardChannel:432 expected: but was: Key: FLINK-2006 URL: https://issues.apache.org/jira/browse/FLINK-2006 Project: Flink

Re: [DISCUSS] Merging Storm compatibility to Flink-contrib

2015-05-13 Thread Robert Metzger
That would be great, thank you! Please write down everything you see and post it on the mailing list. On Wed, May 13, 2015 at 9:42 AM, Szabó Péter wrote: > @Robert: I have a little storm experience. I will try to run some examples > on the cluster. > > Peter > > 2015-05-12 11:40 GMT+02:00 Matth

Re: [DISCUSS] Merging Storm compatibility to Flink-contrib

2015-05-13 Thread Szabó Péter
@Robert: I have a little storm experience. I will try to run some examples on the cluster. Peter 2015-05-12 11:40 GMT+02:00 Matthias J. Sax : > Hi, > > some UnsupportedOperationExceptions are required, because Storm > interfaces are implement but Flink cannot support those functionality. > Some

Re: Flink on Tez Test stuck

2015-05-13 Thread Aljoscha Krettek
I think I saw it once, yes. But dismissed it as a fluke. On Wed, May 13, 2015 at 1:13 AM, Stephan Ewen wrote: > I have observed that a Flink-on-Tez test job stalls in two cases on the > Travis CI server. > > https://travis-ci.org/StephanEwen/incubator-flink/jobs/62302207 > > It looks like a shuff

Re: [DISCUSS] Access to Time and Window in Streaming Operations

2015-05-13 Thread Bruno Cadonna
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi, I think timestamping results of a time window operator is essential. Without timestamps in the results, it is not possible to execute two time window operators one after the other. Cheers, Bruno On 12.05.2015 18:30, Aljoscha Krettek wrote: > Hi,