[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14246935#comment-14246935 ] Reynold Xin commented on SPARK-4740: Thanks for the analysis - it looks like your resu

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14245040#comment-14245040 ] Jie Huang commented on SPARK-4740: -- At the very beginning, we also suspected if it was an

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14244710#comment-14244710 ] Aaron Davidson commented on SPARK-4740: --- The thing is, the decision about which IO r

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14244168#comment-14244168 ] Jie Huang commented on SPARK-4740: -- [~rxin], I wonder if it is possible that Netty approa

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14242656#comment-14242656 ] Zhang, Liye commented on SPARK-4740: Hi [~adav], I missed there is another patch from

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14242101#comment-14242101 ] Reynold Xin commented on SPARK-4740: I can't really think of a reason why the Netty on

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14241973#comment-14241973 ] Saisai Shao commented on SPARK-4740: Hi Reynold, the code I pasted is just the example

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14241524#comment-14241524 ] Apache Spark commented on SPARK-4740: - User 'rxin' has created a pull request for this

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14241523#comment-14241523 ] Reynold Xin commented on SPARK-4740: Also [~jerryshao] when I asked you to disable tra

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14241463#comment-14241463 ] Aaron Davidson commented on SPARK-4740: --- Clarification: The merged version of Reynol

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14241206#comment-14241206 ] Zhang, Liye commented on SPARK-4740: Hi [~adav], [~rxin], I run the test with the late

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14240813#comment-14240813 ] Saisai Shao commented on SPARK-4740: Thanks Aaron, we will try to use ramdisk to minim

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14240704#comment-14240704 ] Aaron Davidson commented on SPARK-4740: --- We had 4 i2.8xlarge executors each with 32

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14240627#comment-14240627 ] Saisai Shao commented on SPARK-4740: Hi Aaron, would you mind giving us your system co

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14240583#comment-14240583 ] Reynold Xin commented on SPARK-4740: I'm going to downgrade this ticket from blocker t

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14240579#comment-14240579 ] Aaron Davidson commented on SPARK-4740: --- I spent another day trying to reproduce the

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14239102#comment-14239102 ] Aaron Davidson commented on SPARK-4740: --- I tried to reproduce this on an EC2 cluster

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14237179#comment-14237179 ] Zhang, Liye commented on SPARK-4740: Hi [~adav], I kept speculation as default (false)

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14237178#comment-14237178 ] Zhang, Liye commented on SPARK-4740: [~pwendell], I have the same concern first, and I

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14237075#comment-14237075 ] Patrick Wendell commented on SPARK-4740: [~terrymanu] - is it possible that someho

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14237034#comment-14237034 ] Aaron Davidson commented on SPARK-4740: --- Do you have speculation enabled, by the way

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14237026#comment-14237026 ] Aaron Davidson commented on SPARK-4740: --- Could we get logs from the good/bad executo

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14237019#comment-14237019 ] Zhang, Liye commented on SPARK-4740: Hi [~adav],[~rxin] for the better executor, in fa

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14237018#comment-14237018 ] Aaron Davidson commented on SPARK-4740: --- Very interesting -- "good" executor is usin

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14237015#comment-14237015 ] Zhang, Liye commented on SPARK-4740: Hi [~adav], I attached the jstack info for both t

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14236999#comment-14236999 ] Reynold Xin commented on SPARK-4740: BTW guys, would it be possible for us to ssh onto

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14236898#comment-14236898 ] Aaron Davidson commented on SPARK-4740: --- Thanks for testing out the patch. Could we

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14236895#comment-14236895 ] Zhang, Liye commented on SPARK-4740: Hi [~rxin], on my 4 node cluster, I just tested d

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14236777#comment-14236777 ] Saisai Shao commented on SPARK-4740: Hi Reynold, I just tested your patch with sort-by

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14236555#comment-14236555 ] Reynold Xin commented on SPARK-4740: Thanks - when you test this, it would be great if

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14236552#comment-14236552 ] Saisai Shao commented on SPARK-4740: I will test it on my 24 cores and 12 HDDs cluster

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14236533#comment-14236533 ] Reynold Xin commented on SPARK-4740: [~jerryshao] [~liyezhang556520] I understand it's

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14236162#comment-14236162 ] Patrick Wendell commented on SPARK-4740: I'd like to escalate this to a 1.2 blocke

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14236133#comment-14236133 ] Reynold Xin commented on SPARK-4740: I submitted a WIP PR: https://github.com/apache/s

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14236134#comment-14236134 ] Apache Spark commented on SPARK-4740: - User 'rxin' has created a pull request for this

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14235986#comment-14235986 ] Reynold Xin commented on SPARK-4740: Looking at the nio stacktrace it does confirm one

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14235813#comment-14235813 ] Aaron Davidson commented on SPARK-4740: --- I think we have ourselves a winner. NIO is

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14235241#comment-14235241 ] Aaron Davidson commented on SPARK-4740: --- I could believe that the result is no bette

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14235036#comment-14235036 ] Saisai Shao commented on SPARK-4740: Hi [~rxin], the difference between NIO and Netty

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14235015#comment-14235015 ] Aaron Davidson commented on SPARK-4740: --- To clarify, we have two hypotheses currentl

[jira] [Commented] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey

[ https://issues.apache.org/jira/browse/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14235009#comment-14235009 ] Reynold Xin commented on SPARK-4740: One other thing that would be great to try is to