[jira] [Commented] (HBASE-30447) Table-level metrics can stop updating until the RegionServer restarts

["Hudson (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-30447?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18124173#comment-18124173 ] 

Hudson commented on HBASE-30447:
--------------------------------

Results for branch branch-3.0
	[build #45 on builds.a.o|https://ci-hbase.apache.org/job/HBase-Integration-Test/job/branch-3.0/45/]: (/) *{color:green}+1 overall{color}*
----
details (if available):



(/) {color:green}+1 client integration test for 3.3.5 {color}
(/) {color:green}+1 client integration test for 3.3.5 with shaded hadoop client{color}


(/) {color:green}+1 client integration test for 3.3.6 {color}
(/) {color:green}+1 client integration test for 3.3.6 with shaded hadoop client{color}


(/) {color:green}+1 client integration test for 3.4.0 {color}
(/) {color:green}+1 client integration test for 3.4.0 with shaded hadoop client{color}


(/) {color:green}+1 client integration test for 3.4.1 {color}
(/) {color:green}+1 client integration test for 3.4.1 with shaded hadoop client{color}


(/) {color:green}+1 client integration test for 3.4.2 {color}
(/) {color:green}+1 client integration test for 3.4.2 with shaded hadoop client{color}


(/) {color:green}+1 client integration test for 3.4.3 {color}
(/) {color:green}+1 client integration test for 3.4.3 with shaded hadoop client{color}


> Table-level metrics can stop updating until the RegionServer restarts
> ---------------------------------------------------------------------
>
>                 Key: HBASE-30447
>                 URL: https://issues.apache.org/jira/browse/HBASE-30447
>             Project: HBase
>          Issue Type: Bug
>          Components: metrics
>    Affects Versions: 2.0.0, 3.0.0
>            Reporter: David Manning
>            Assignee: David Manning
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 4.0.0-alpha-1, 2.7.0, 3.1.0, 3.0.1, 2.6.8
>
>
> It is possible for table-level metrics from {{MetricsTableWrapperAggregateImpl.java}} to stop updating, and continually produce the last static value until RegionServer restart.
> The cause is not known but the most likely result is some {{NullPointerException}} in the {{run}} method.
> Because an exception is not caught in the {{run}} method, the {{ScheduledFutureTask}} will no longer be scheduled after the uncaught exception is thrown.
> There is no logging, so the cause of us seeing this behavior is not currently known. But with this issue fix, we could have logging to identify the source of the exception, which could lead to other bug fixes.



--
This message was sent by Atlassian Jira
(v8.20.10#820010)