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

2019-08-08 Thread Konstantin Shvachko (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16903466#comment-16903466 ] Konstantin Shvachko commented on HDFS-14655: Hey guys, discussed this with Chen. It seems

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

2019-07-22 Thread Erik Krogen (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16890513#comment-16890513 ] Erik Krogen commented on HDFS-14655: Great discussion here. [~ayushtkn], particularly good call on

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

2019-07-18 Thread Ayush Saxena (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16888100#comment-16888100 ] Ayush Saxena commented on HDFS-14655: - Thanx [~vagarychen]. The solution that we have is, We too

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

2019-07-17 Thread Chen Liang (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16887514#comment-16887514 ] Chen Liang commented on HDFS-14655: --- Thanks for sharing the details [~ayushtkn]! I also wondered if

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

2019-07-17 Thread Ayush Saxena (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16887490#comment-16887490 ] Ayush Saxena commented on HDFS-14655: - Thanx [~vagarychen] we too tried with just the approach of

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

2019-07-17 Thread Chen Liang (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16887426#comment-16887426 ] Chen Liang commented on HDFS-14655: --- Post a POC patch with the idea of cancelling unfinished calls

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

2019-07-17 Thread Chen Liang (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16887342#comment-16887342 ] Chen Liang commented on HDFS-14655: --- Thanks [~ayushtkn]. I'm also thinking of cancelling outstanding

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

2019-07-17 Thread Ayush Saxena (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16887309#comment-16887309 ] Ayush Saxena commented on HDFS-14655: - Thanx [~vagarychen], If you check the trace, the first line

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

2019-07-17 Thread Chen Liang (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16887284#comment-16887284 ] Chen Liang commented on HDFS-14655: --- Thanks [~ayushtkn]. Then looks like even without observer read, as

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

2019-07-16 Thread Ayush Saxena (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16886615#comment-16886615 ] Ayush Saxena commented on HDFS-14655: - Thanx [~vagarychen] Yes, It affected all the observers. In

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

2019-07-16 Thread Chen Liang (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16886384#comment-16886384 ] Chen Liang commented on HDFS-14655: --- Thanks for reporting this and really appreciate the investigation

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

2019-07-15 Thread Ayush Saxena (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16885850#comment-16885850 ] Ayush Saxena commented on HDFS-14655: - For Observer read, The edit log tail period is set to 0,