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https://issues.apache.org/jira/browse/HBASE-15144?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15157128#comment-15157128
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Matteo Bertozzi commented on HBASE-15144:
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I think the jsp pages are stateless.
to start with we should just make syncWaitUI, slotIndexUI, totalSyncedUI,
syncedPerSecUI a circular buffer of 10 item or so (maybe add a conf
hbase.procedure.store.wal.sync.stats.count) and then just display them with a
for loop. the current page is good, but when I was looking at the page I
realized that a single value does not have much meaning.
later we may add more stuff like an histogram, but for now a simple list of N
items is ok.
> Procedure v2 - Web UI displaying Store state
> --------------------------------------------
>
> Key: HBASE-15144
> URL: https://issues.apache.org/jira/browse/HBASE-15144
> Project: HBase
> Issue Type: Sub-task
> Components: proc-v2, UI
> Reporter: Matteo Bertozzi
> Assignee: Samir Ahmic
> Priority: Minor
> Fix For: 2.0.0, 1.3.0
>
> Attachments: HBASE-15144_v0.patch, HBASE-15144_v1.patch,
> HBASE-15144_v2.patch, WALStoreUI.png
>
>
> The procedure webui page should show information about the WALProcedureStore.
> * number/list/size of WALs active
> * we may extract the "Sync wait %s, slotIndex=%s , totalSynced=%s (%s/sec)"
> that today is only in LOG.trace()
> * we have a getMillisToNextPeriodicRoll() and getMillisFromLastRoll() if
> anyone want to see that
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