[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17007828#comment-17007828 ] Chen Liang commented on HDFS-14655: --- HDFS-14934  does look like the fix. Thanks  for the pointer

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17007665#comment-17007665 ] Ayush Saxena commented on HDFS-14655: - Thanx [~vagarychen] for sharing. I think this should be fixed

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17007662#comment-17007662 ] Chen Liang commented on HDFS-14655: --- [~ayushtkn] shared below, it may not help too much though, as it

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17004234#comment-17004234 ] Ayush Saxena commented on HDFS-14655: - [~vagarychen] can you share the log trace? > [SBN Read]

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16973655#comment-16973655 ] Chen Liang commented on HDFS-14655: --- [~xkrogen] seems like a different message, looks to me that this

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16973496#comment-16973496 ] Erik Krogen commented on HDFS-14655: [~vagarychen] is that different from the issue reported in

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16972701#comment-16972701 ] Chen Liang commented on HDFS-14655: --- We have this fix in our deployment, one thing I found is that it

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16959529#comment-16959529 ] Takanobu Asanuma commented on HDFS-14655: - This issue may cause HDFS-14934. > [SBN Read]

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16947051#comment-16947051 ] Erik Krogen commented on HDFS-14655: Thanks [~ayushtkn]! > [SBN Read] Namenode crashes if one of The

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16946600#comment-16946600 ] Ayush Saxena commented on HDFS-14655: - Thanx [~xkrogen] Fixed checkstyle and pushed to branch-2. >

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16946569#comment-16946569 ] Hadoop QA commented on HDFS-14655: -- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem ||

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16945995#comment-16945995 ] Erik Krogen commented on HDFS-14655: Got it. +1 from me on the branch-2 patch but can we fix the two

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16942421#comment-16942421 ] Ayush Saxena commented on HDFS-14655: - In the test, Lambda Expression was to be replaced and in the

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16942305#comment-16942305 ] Erik Krogen commented on HDFS-14655: Thanks [~ayushtkn]! Would you mind explaining any major

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16942268#comment-16942268 ] Ayush Saxena commented on HDFS-14655: - Two Checkstyle warning, I need to fix. [~xkrogen] can you

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16942257#comment-16942257 ] Hadoop QA commented on HDFS-14655: -- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem ||

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16942191#comment-16942191 ] Hadoop QA commented on HDFS-14655: -- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem ||

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16942108#comment-16942108 ] Erik Krogen commented on HDFS-14655: Hi [~ayushtkn], are you still working on the backport? > [SBN

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16937166#comment-16937166 ] Ayush Saxena commented on HDFS-14655: - Sure [~xkrogen] would shoot a branch-2 patch for it in a

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16937164#comment-16937164 ] Hudson commented on HDFS-14655: --- SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #17373 (See

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16937151#comment-16937151 ] Erik Krogen commented on HDFS-14655: Thank you [~ayushtkn]! Would you be open to helping us get this

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16937150#comment-16937150 ] Ayush Saxena commented on HDFS-14655: - Committed to trunk, 3.2 and 3.1 Thanx [~vinayakumarb] [~shv]

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16937134#comment-16937134 ] Vinayakumar B commented on HDFS-14655: -- +1 > [SBN Read] Namenode crashes if one of The JN is down >

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16936192#comment-16936192 ] Konstantin Shvachko commented on HDFS-14655: +1 Yes it does work as expected now for me. >

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16935960#comment-16935960 ] Ayush Saxena commented on HDFS-14655: - Test failure seems unrelated. [~vinayakumarb] [~shv] any

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16935198#comment-16935198 ] Hadoop QA commented on HDFS-14655: -- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem ||

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16935133#comment-16935133 ] Ayush Saxena commented on HDFS-14655: - Thanx [~vinayakumarb]for the review. Have made the suggested

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16935114#comment-16935114 ] Vinayakumar B commented on HDFS-14655: -- Thanks [~ayushtkn] for detailed investigation and patch.

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16933585#comment-16933585 ] Ayush Saxena commented on HDFS-14655: - Thanx [~shv] and [~xkrogen]. I too verified by reverting and

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16933556#comment-16933556 ] Erik Krogen commented on HDFS-14655: [~shv] I previously tried the same (revert the production code

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16932926#comment-16932926 ] Hadoop QA commented on HDFS-14655: -- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem ||

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16932900#comment-16932900 ] Konstantin Shvachko commented on HDFS-14655: Hey guys I could not reproduce the problem with

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16932879#comment-16932879 ] Erik Krogen commented on HDFS-14655: Awesome! +1 from me. [~shv], does it look okay to you after the

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16932876#comment-16932876 ] Ayush Saxena commented on HDFS-14655: - looks better. updated in v07. > [SBN Read] Namenode crashes

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16932810#comment-16932810 ] Erik Krogen commented on HDFS-14655: v6 LGTM! If you want, I think the thread counting can be

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16932789#comment-16932789 ] Ayush Saxena commented on HDFS-14655: - Thanx [~xkrogen] for the review. Have made said changes in the

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16932729#comment-16932729 ] Erik Krogen commented on HDFS-14655: Thanks for adding a test [~ayushtkn]! I'm worried about using

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16932679#comment-16932679 ] Hadoop QA commented on HDFS-14655: -- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem ||

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16932459#comment-16932459 ] Ayush Saxena commented on HDFS-14655: - Thanx [~shv] Have added a UT(thanks to Chen, used parts from

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16931797#comment-16931797 ] Konstantin Shvachko commented on HDFS-14655: Hey guys, would it possible to add a test case?

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16931684#comment-16931684 ] Ayush Saxena commented on HDFS-14655: - [~xkrogen] [~vagarychen] [~shv] any further comments... >

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16928036#comment-16928036 ] Hadoop QA commented on HDFS-14655: -- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem ||

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16927923#comment-16927923 ] Ayush Saxena commented on HDFS-14655: - No issues, We can definitely wait. It would be good if we can

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16927910#comment-16927910 ] Erik Krogen commented on HDFS-14655: Agreed, I think we are saying the same thing. I'm +1 on v004

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16927900#comment-16927900 ] Ayush Saxena commented on HDFS-14655: - Yes, As I said above too, It interrupts But doesn’t kill,m >

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16927896#comment-16927896 ] Erik Krogen commented on HDFS-14655: Hm. I believe that when you call {{cancel()}} on the

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16927854#comment-16927854 ] Ayush Saxena commented on HDFS-14655: - Thanx [~xkrogen], Well we can change it to 60 seconds. I guess

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16925848#comment-16925848 ] Erik Krogen commented on HDFS-14655: Looks better to me, thanks [~ayushtkn]! I do think we should

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16924675#comment-16924675 ] Ayush Saxena commented on HDFS-14655: - Thanx [~xkrogen], Have uploaded v3 with said change. > [SBN

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16924650#comment-16924650 ] Erik Krogen commented on HDFS-14655: v2 looks good to me except that I don't think

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16924632#comment-16924632 ] Ayush Saxena commented on HDFS-14655: - Thanx [~vagarychen] [~xkrogen] for the discussion. I agree in

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16923663#comment-16923663 ] Chen Liang commented on HDFS-14655: --- [~xkrogen] I agree. But in the particular case here, the only

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16923658#comment-16923658 ] Erik Krogen commented on HDFS-14655: [~chliang] I don't think we want a fixed thread pool, something

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16923657#comment-16923657 ] Chen Liang commented on HDFS-14655: --- [~xkrogen] IIUC, {{IPCLoggerChannel}} here is used on per JN

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16923653#comment-16923653 ] Chen Liang commented on HDFS-14655: --- Thanks for working on this [~ayushtkn]! v01 patch LGTM overall,

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16923651#comment-16923651 ] Erik Krogen commented on HDFS-14655: [~ayushtkn] isn't 1 thread insufficient to perform the calls in

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16923637#comment-16923637 ] Ayush Saxena commented on HDFS-14655: - [~xkrogen] [~surendrasingh] can you give a look? > [SBN

[jira] [Commented] (HDFS-14655) [SBN Read] Namenode crashes if one of The JN is down

[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16920126#comment-16920126 ] Ayush Saxena commented on HDFS-14655: - Have uploaded patch to limit thread as of now to 1, We can