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https://issues.apache.org/jira/browse/HBASE-4684?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Purtell updated HBASE-4684:
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Attachment: HBASE-4684-v2-0.90.patch
Attached patch v2 that shares a single HBA for all needs.
{quote}
bq. In its current form, the patch will need some modifications to work with
0.90 because HBA doesn't have a close method.
I'm almost positive I based this patch on the head of 0.90 branch.
{quote}
HBASE-4508 backported changes to make HBA and others closeable from HBASE-3777.
> REST server is leaking ZK connections in 0.90
> ---------------------------------------------
>
> Key: HBASE-4684
> URL: https://issues.apache.org/jira/browse/HBASE-4684
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.90.4
> Reporter: Jean-Daniel Cryans
> Assignee: Andrew Purtell
> Priority: Critical
> Fix For: 0.90.5
>
> Attachments: HBASE-4684-0.90.patch, HBASE-4684-v2-0.90.patch
>
>
> As reported a month ago, http://search-hadoop.com/m/FD6gmKzrxY1, the REST
> server is leak ZK connections. Upon investigation I see that
> TableResource.scanTransformAttrs creates a new HBA per minute per table (when
> the server is getting requests) but never deletes the connection created in
> there.
> There are a bunch of other places where HBAs are created but not cleaned
> after like SchemaResource, StorageClusterStatusResource,
> StorageClusterVersionResource, ExistsResource, etc. Those places shouldn't be
> as leaky under normal circumstances tho.
> Thanks to Jack Levin for bringing up this issue again when he tried to
> upgrade.
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