[jira] [Commented] (HDFS-10475) Adding metrics for long FSNamesystem read and write locks

2016-09-19 Thread Erik Krogen (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-10475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15504617#comment-15504617 ] Erik Krogen commented on HDFS-10475: After offline discussion with Zhe we have decided

[jira] [Commented] (HDFS-10475) Adding metrics for long FSNamesystem read and write locks

2016-09-14 Thread Zhe Zhang (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-10475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15491551#comment-15491551 ] Zhe Zhang commented on HDFS-10475: -- Nice discussion guys. A quick note from looking at t

[jira] [Commented] (HDFS-10475) Adding metrics for long FSNamesystem read and write locks

2016-09-14 Thread Andrew Wang (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-10475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15491427#comment-15491427 ] Andrew Wang commented on HDFS-10475: bq. how we would publish the histograms? We alre

[jira] [Commented] (HDFS-10475) Adding metrics for long FSNamesystem read and write locks

2016-09-14 Thread Erik Krogen (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-10475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15491251#comment-15491251 ] Erik Krogen commented on HDFS-10475: Thanks for the pointer to RpcDetailedActivity, [~

[jira] [Commented] (HDFS-10475) Adding metrics for long FSNamesystem read and write locks

2016-09-14 Thread Kihwal Lee (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-10475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15490522#comment-15490522 ] Kihwal Lee commented on HDFS-10475: --- While I think this is a very useful feature, I am a

[jira] [Commented] (HDFS-10475) Adding metrics for long FSNamesystem read and write locks

2016-09-13 Thread Andrew Wang (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-10475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15488988#comment-15488988 ] Andrew Wang commented on HDFS-10475: Digging a bit more, I see that there's RpcMetrics

[jira] [Commented] (HDFS-10475) Adding metrics for long FSNamesystem read and write locks

2016-09-13 Thread Zhe Zhang (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-10475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=1547#comment-1547 ] Zhe Zhang commented on HDFS-10475: -- Thanks for the insight Andrew. Do we have per-OP RPC

[jira] [Commented] (HDFS-10475) Adding metrics for long FSNamesystem read and write locks

2016-09-13 Thread Andrew Wang (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-10475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15488879#comment-15488879 ] Andrew Wang commented on HDFS-10475: Looking at it a bit more, the RPC metrics only tr

[jira] [Commented] (HDFS-10475) Adding metrics for long FSNamesystem read and write locks

2016-09-13 Thread Andrew Wang (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-10475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15488795#comment-15488795 ] Andrew Wang commented on HDFS-10475: Thanks for the ping Zhe. Question, isn't a lot of

[jira] [Commented] (HDFS-10475) Adding metrics for long FSNamesystem read and write locks

2016-09-13 Thread Zhe Zhang (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-10475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15488523#comment-15488523 ] Zhe Zhang commented on HDFS-10475: -- Thanks Erik for the analysis. bq. Move the logging/m

[jira] [Commented] (HDFS-10475) Adding metrics for long FSNamesystem read and write locks

2016-09-12 Thread Erik Krogen (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-10475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15485649#comment-15485649 ] Erik Krogen commented on HDFS-10475: To get a mapping of operation -> lock time metric

[jira] [Commented] (HDFS-10475) Adding metrics for long FSNamesystem read and write locks

2016-09-02 Thread Mingliang Liu (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-10475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15459801#comment-15459801 ] Mingliang Liu commented on HDFS-10475: -- A complete op->lock time will be feasible for

[jira] [Commented] (HDFS-10475) Adding metrics for long FSNamesystem read and write locks

2016-09-02 Thread Zhe Zhang (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-10475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15459579#comment-15459579 ] Zhe Zhang commented on HDFS-10475: -- Thanks for confirming this Xiaoyu. [~xkrogen] Has st