[
https://issues.apache.org/jira/browse/HBASE-26660?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Pola Sairam updated HBASE-26660:
--------------------------------
Description: (was: PeriodicMemstoreFlusher requests flush with a random
delay ranging from 0 to
`hbase.regionserver.periodicmemstoreflusher.rangeofdelayseconds`
For example, consider the following configuration:
^hbase.regionserver.periodicmemstoreflusher.rangeofdelayseconds - 200 secs^
^hbase.hregion.memstore.flush.size - 256MB^
^hbase.hregion.memstore.block.multiplier - 4^
Consider the case when PeriodicMemstoreFlusher requests a flush with 100secs
delay and memstore size is less than 256MB.
Now if we have write load that fills the memstore more than 256MB, the flush
request because of memstore breaching `hbase.hregion.memstore.flush.size` is
not honored as a flush request already exists that was made by
PeriodicMemstoreFlusher.
And if we have a huge write load, then blocking limit will also hit and writes
will start failing not only till flush is happened but also during the delay
time (< 100secs in this case) added by PeriodicMemstoreFlusher.
We need to overwrite the flush requested by PeriodicMemstoreFlusher by the
flush requested when memstore flush size is reached to remove the delay in
flushing.)
Summary: Backporting of HBASE-25643 (was: Override the flush requested
by PeriodicMemstoreFlusher by the Flush requested when
hbase.hregion.memstore.flush.size is breached)
> Backporting of HBASE-25643
> --------------------------
>
> Key: HBASE-26660
> URL: https://issues.apache.org/jira/browse/HBASE-26660
> Project: HBase
> Issue Type: Bug
> Components: regionserver
> Reporter: Pola Sairam
> Assignee: Pola Sairam
> Priority: Major
> Fix For: 1.7.1
>
>
--
This message was sent by Atlassian Jira
(v8.20.1#820001)
