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https://issues.apache.org/jira/browse/HBASE-21164?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16611595#comment-16611595
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stack commented on HBASE-21164:
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bq. ...we will wait a lot of time waiting the regionserver to stop when shut
down.
There is a facility to wake this.sleeper. Could call from stop/abort?
[~liuml07] Pardon my not giving this attention. I have been running w/ this in
place and have been trying to capture a good example of it in action to show
how this patch is useful.
[~allan163] has a point though. Can't sleep too long else will take a while to
notice a shutdown.... Could just have a max of a minute or two if the wake
this.sleeper isn't working. Thanks.
> reportForDuty should do (expotential) backoff rather than retry every 3
> seconds (default).
> ------------------------------------------------------------------------------------------
>
> Key: HBASE-21164
> URL: https://issues.apache.org/jira/browse/HBASE-21164
> Project: HBase
> Issue Type: Improvement
> Components: regionserver
> Reporter: stack
> Assignee: Mingliang Liu
> Priority: Minor
> Attachments: HBASE-21164.005.patch, HBASE-21164.branch-2.1.001.patch,
> HBASE-21164.branch-2.1.002.patch, HBASE-21164.branch-2.1.003.patch,
> HBASE-21164.branch-2.1.004.patch
>
>
> RegionServers do reportForDuty on startup to tell Master they are available.
> If Master is initializing, and especially on a big cluster when it can take a
> while particularly if something is amiss, the log every three seconds is
> annoying and doesn't do anything of use. Do backoff if fails up to a
> reasonable maximum period. Here is example:
> {code}
> 2018-09-06 14:01:39,312 INFO
> org.apache.hadoop.hbase.regionserver.HRegionServer: reportForDuty to
> master=vc0207.halxg.cloudera.com,22001,1536266763109 with port=22001,
> startcode=1536266763109
> 2018-09-06 14:01:39,312 WARN
> org.apache.hadoop.hbase.regionserver.HRegionServer: reportForDuty failed;
> sleeping and then retrying.
> ....
> {code}
> For example, I am looking at a large cluster now that had a backlog of
> procedure WALs. It is taking a couple of hours recreating the procedure-state
> because there are millions of procedures outstanding. Meantime, the Master
> log is just full of the above message -- every three seconds...
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