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https://issues.apache.org/jira/browse/PHOENIX-4025?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Geoffrey Jacoby resolved PHOENIX-4025.
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Resolution: Won't Fix
Consensus seems to be that PHOENIX-4021 can cover 0.98-based Phoenix branches
as well.
> Make CachingHTableFactory thread-safe for 0.98 branch
> -----------------------------------------------------
>
> Key: PHOENIX-4025
> URL: https://issues.apache.org/jira/browse/PHOENIX-4025
> Project: Phoenix
> Issue Type: Bug
> Affects Versions: 4.11.0
> Reporter: Geoffrey Jacoby
> Assignee: Geoffrey Jacoby
> Fix For: 4.12.0
>
>
> CachingHTableFactory, which is used in global index writes, isn't thread-safe
> (see discussion in PHOENIX-4021) and will be removed in the master and
> 4.x-HBase-1.x branches. However, according to PHOENIX-3159 it's still needed
> in HBase 0.98-based Phoenix because creating HTables is still heavy-weight in
> 0.98.
> This means it needs to be made thread-safe. Current plan is when an HTable's
> requested, check the reference count (which is already tracked for cleanup
> purposes) and if the count is 1, create a new HTable. We'll cache lists of
> identical HTables per HBase table, rather than 1 HTable per HBase table.
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