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https://issues.apache.org/jira/browse/HBASE-21136?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16599885#comment-16599885
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Guanghao Zhang commented on HBASE-21136:
----------------------------------------
Use computeIfAbsent directly and don't need tableSources.get(table)?
{code:java}
return tableSources.computeIfAbsent(table, k -> {
MetricsTableSource newSource = CompatibilitySingletonFactory
.getInstance(MetricsRegionServerSourceFactory.class).createTable(table,
wrapper);
// register the new metrics now
newSource.registerMetrics();
return newSource;
});
{code}
> NPE in MetricsTableSourceImpl.updateFlushTime
> ---------------------------------------------
>
> Key: HBASE-21136
> URL: https://issues.apache.org/jira/browse/HBASE-21136
> Project: HBase
> Issue Type: Bug
> Components: metrics
> Reporter: Guanghao Zhang
> Assignee: Duo Zhang
> Priority: Major
> Fix For: 3.0.0, 1.5.0, 2.2.0
>
> Attachments: HBASE-21136-v1.patch, HBASE-21136.patch
>
>
> See https://builds.apache.org/job/PreCommit-HBASE-Build/14260/testReport/
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