[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14233132#comment-14233132 ] Hudson commented on HDFS-6735: -- FAILURE: Integrated in Hadoop-Mapreduce-trunk-Java8 #24 (See

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14233116#comment-14233116 ] Hudson commented on HDFS-6735: -- FAILURE: Integrated in Hadoop-Mapreduce-trunk #1978 (See [htt

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14233061#comment-14233061 ] Hudson commented on HDFS-6735: -- FAILURE: Integrated in Hadoop-Hdfs-trunk-Java8 #24 (See [http

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14233045#comment-14233045 ] Hudson commented on HDFS-6735: -- FAILURE: Integrated in Hadoop-Hdfs-trunk #1955 (See [https://

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14232917#comment-14232917 ] Hudson commented on HDFS-6735: -- SUCCESS: Integrated in Hadoop-Yarn-trunk-Java8 #24 (See [http

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14232903#comment-14232903 ] Hudson commented on HDFS-6735: -- FAILURE: Integrated in Hadoop-Yarn-trunk #763 (See [https://b

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14232596#comment-14232596 ] Hudson commented on HDFS-6735: -- FAILURE: Integrated in Hadoop-trunk-Commit #6638 (See [https:

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14230294#comment-14230294 ] Colin Patrick McCabe commented on HDFS-6735: +1. Thanks, Lars. > A minor opti

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14228890#comment-14228890 ] stack commented on HDFS-6735: - Patch looks great to me. Trying it here on a little cluster. I

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14228549#comment-14228549 ] Hadoop QA commented on HDFS-6735: - {color:red}-1 overall{color}. Here are the results of t

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14227953#comment-14227953 ] Hadoop QA commented on HDFS-6735: - {color:red}-1 overall{color}. Here are the results of t

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14227945#comment-14227945 ] Hadoop QA commented on HDFS-6735: - {color:red}-1 overall{color}. Here are the results of t

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14227174#comment-14227174 ] Hadoop QA commented on HDFS-6735: - {color:red}-1 overall{color}. Here are the results of t

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14227155#comment-14227155 ] Lars Hofhansl commented on HDFS-6735: - So to be specific the improvement I see above is

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14227148#comment-14227148 ] Lars Hofhansl commented on HDFS-6735: - Tested -v6 with HBase. Still good from the DFSIn

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14227031#comment-14227031 ] Lars Hofhansl commented on HDFS-6735: - Per my comment above my preference would still b

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14226896#comment-14226896 ] stack commented on HDFS-6735: - Interesting CachingStrategy can be changed on a DFSIS post-const

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14226791#comment-14226791 ] Colin Patrick McCabe commented on HDFS-6735: * {{readWithStrategy}} and {{block

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14225473#comment-14225473 ] Hadoop QA commented on HDFS-6735: - {color:red}-1 overall{color}. Here are the results of t

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14224353#comment-14224353 ] Steve Loughran commented on HDFS-6735: -- you can fix the findbugs warnng by tweaking {

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14223901#comment-14223901 ] Lars Hofhansl commented on HDFS-6735: - The remaining findbugs warning is due to caching

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14222772#comment-14222772 ] Hadoop QA commented on HDFS-6735: - {color:red}-1 overall{color}. Here are the results of t

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14222673#comment-14222673 ] Lars Hofhansl commented on HDFS-6735: - s/since we never get into that if block if we co

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14222544#comment-14222544 ] Hadoop QA commented on HDFS-6735: - {color:red}-1 overall{color}. Here are the results of t

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14221839#comment-14221839 ] Lars Hofhansl commented on HDFS-6735: - Thanks [~cmccabe]. I'll put the synchronized bac

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14220659#comment-14220659 ] Colin Patrick McCabe commented on HDFS-6735: bq. Another locking option is not

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14220654#comment-14220654 ] Colin Patrick McCabe commented on HDFS-6735: bq. re: tryReadZeroCopy removing t

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14219075#comment-14219075 ] Lars Hofhansl commented on HDFS-6735: - Apologies for the spam... I have a backport of t

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14219074#comment-14219074 ] Lars Hofhansl commented on HDFS-6735: - re: tryReadZeroCopy removing the synchronization

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14219072#comment-14219072 ] Lars Hofhansl commented on HDFS-6735: - Thanks [~cmccabe]. "infoLock" is better. I'll fi

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14219026#comment-14219026 ] Colin Patrick McCabe commented on HDFS-6735: This is definitely a tricky change

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14218802#comment-14218802 ] Lars Hofhansl commented on HDFS-6735: - I ran TestByteArrayManager as well as all tests

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14203875#comment-14203875 ] Hadoop QA commented on HDFS-6735: - {color:red}-1 overall{color}. Here are the results of t

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14194904#comment-14194904 ] Colin Patrick McCabe commented on HDFS-6735: Hi Lars, Thanks for working on th

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14193634#comment-14193634 ] Hadoop QA commented on HDFS-6735: - {color:red}-1 overall{color}. Here are the results of t

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14193629#comment-14193629 ] Lars Hofhansl commented on HDFS-6735: - As described in HDFS-6698, the potential perform

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14090419#comment-14090419 ] Yi Liu commented on HDFS-6735: -- Hi [~xieliang007], thanks for the patch. Agree with [~cmccabe

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14082749#comment-14082749 ] Colin Patrick McCabe commented on HDFS-6735: Thanks, Steve. And thanks Stack a

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14082114#comment-14082114 ] Steve Loughran commented on HDFS-6735: -- Linking to HADOOP-9361 as it raises the questi

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14072228#comment-14072228 ] Colin Patrick McCabe commented on HDFS-6735: Changing the locking model for the

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14071655#comment-14071655 ] Liang Xie commented on HDFS-6735: - The failed TestPipelinesFailover & TestNamenodeCapacityR

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14071628#comment-14071628 ] Hadoop QA commented on HDFS-6735: - {color:red}-1 overall{color}. Here are the results of t

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14071440#comment-14071440 ] Liang Xie commented on HDFS-6735: - bq. I'd think you'd want a comment at least in LocatedBl

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14071435#comment-14071435 ] Hadoop QA commented on HDFS-6735: - {color:red}-1 overall{color}. Here are the results of t

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14071409#comment-14071409 ] Liang Xie commented on HDFS-6735: - bq. We'd not check in the test since it does not assert

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14071382#comment-14071382 ] stack commented on HDFS-6735: - Nice test. We'd not check in the test since it does not assert

[jira] [Commented] (HDFS-6735) A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream

[ https://issues.apache.org/jira/browse/HDFS-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14071335#comment-14071335 ] Liang Xie commented on HDFS-6735: - This patch includes HDFS-6698 already. With the source c