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https://issues.apache.org/jira/browse/HBASE-14195?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14662194#comment-14662194
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Vladimir Rodionov commented on HBASE-14195:
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ConnectionCache was introduced in 0.98.4/0.99 and all HBase active versions are
affected by this bug. In a few words, If cached connection stays idle for more
than connection idle timeout (10 min) it is closed, but stays in a cache, all
table instances in Thrift servers related to this connection becomes invalid,
all Thrift requests from a particular user start failing.
> Closed connections are not removed from ConnectionCache (Thrift, REST)
> ----------------------------------------------------------------------
>
> Key: HBASE-14195
> URL: https://issues.apache.org/jira/browse/HBASE-14195
> Project: HBase
> Issue Type: Bug
> Components: REST, Thrift
> Affects Versions: 0.98.13, 1.1.1, 1.0.1.1, 1.1.0.1
> Reporter: Vladimir Rodionov
> Assignee: Vladimir Rodionov
> Fix For: 2.0.0, 0.98.14, 1.0.2, 1.2.0, 1.1.2, 1.3.0
>
>
> There is the issue with ConnectionCache (used to cache connections in Thrift
> and REST servers) chore implementation when closed connection is not removed
> from a cache.
> Thrift server is affected most because it has local thread cache of Table
> instances and it does not check if Table instance is invalid (due to closed
> underlying connection) and it can't do it - no API.
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