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https://issues.apache.org/jira/browse/HBASE-27078?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17564449#comment-17564449
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Hudson commented on HBASE-27078:
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Results for branch master
[build #629 on
builds.a.o|https://ci-hbase.apache.org/job/HBase%20Nightly/job/master/629/]:
(x) *{color:red}-1 overall{color}*
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details (if available):
(/) {color:green}+1 general checks{color}
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report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/master/629/General_20Nightly_20Build_20Report/]
(/) {color:green}+1 jdk8 hadoop3 checks{color}
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(x) {color:red}-1 jdk11 hadoop3 checks{color}
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(/) {color:green}+1 source release artifact{color}
-- See build output for details.
(/) {color:green}+1 client integration test{color}
> Allow configuring a separate timeout for meta scans
> ---------------------------------------------------
>
> Key: HBASE-27078
> URL: https://issues.apache.org/jira/browse/HBASE-27078
> Project: HBase
> Issue Type: Improvement
> Reporter: Bryan Beaudreault
> Assignee: Bryan Beaudreault
> Priority: Major
> Labels: patch-available
> Fix For: 2.5.0, 3.0.0-alpha-4
>
>
> There is a {{hbase.client.meta.operation.timeout}} but it does not apply to
> meta scans, which are the primary use-case for clients (i.e. through
> RegionLocator).
> Many user-facing clients may want to have low rpc and scan timeouts. However,
> in periods of meta hotspotting, those timeouts can be way too low for the
> meta scans. The problem with low timeouts for meta scans is that without a
> populated MetaCache, user requests cannot succeed. In fact, user requests
> will continually try to re-scan meta until the MetaCache is populated. So
> having a lower rpc timeout will cause a situation where meta scans cannot
> succeed, and thus user requests cannot succeed. In this case I think it'd be
> preferable to relax the rpc timeout for meta requests so that a few long
> requests can unblock many faster requests.
> My suggestion would be to add an {{hbase.client.meta.rpc.timeout}} and ensure
> that it applies to meta scans. I also think it would be less confusing to
> have {{hbase.client.meta.operation.timeout}} apply as the scanner timeout
> period for meta scans.
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