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https://issues.apache.org/jira/browse/HBASE-11479?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Purtell resolved HBASE-11479.
------------------------------------
Resolution: Fixed
Fix Version/s: 0.94.22
Assignee: cuijianwei
Hadoop Flags: Reviewed
Committed to 0.94 only, Lars already acked it. Thanks for the patch!
> SecureConnection can't be closed when SecureClient is stopping because
> InterruptedException won't be caught in SecureClient#setupIOstreams()
> --------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-11479
> URL: https://issues.apache.org/jira/browse/HBASE-11479
> Project: HBase
> Issue Type: Bug
> Components: security
> Affects Versions: 0.94.20
> Reporter: cuijianwei
> Assignee: cuijianwei
> Priority: Minor
> Fix For: 0.94.22
>
> Attachments: HBASE-11479-0.94-v1.patch
>
>
> When HBaseClient.stop() is invoked, all cached HBaseClient.Connections will
> be interrupted, marked as closed and then finally closed. HBaseClient.stop()
> won't return before all cached HBaseClient.Connections have been closed.
> However, SecureConnection might not be closed after HBaseClient.stop() is
> invoked because of the following code in SecureClient,setupIOstreams():
> {code}
> ...
> try {
> ...
> try {
> continueSasl =
> ticket.runAs(new PrivilegedExceptionAction<Boolean>() {
> @Override
> public Boolean run() throws IOException {
> return setupSaslConnection(in2, out2);
> }
> });
> } catch (Exception ex) {
> if (rand == null) {
> rand = new Random();
> }
> // == InterruptedException won't be caught ==
> handleSaslConnectionFailure(numRetries++, MAX_RETRIES, ex,
> rand, ticket);
> continue;
> ...
> }
> }
> } catch (IOException e) {
> markClosed(e);
> close();
> throw e;
> }
> ...
> {code}
> SecureClient.handleSaslConnectionFailure(...) will throw InterruptedException
> exception(there will be Thread.sleep() in
> SecureClient.handleSaslConnectionFailure(...)) when HBaseClient#stop() is
> invoked. However, this InterruptedException won't be caught, making this
> SecureConnection can't be closed.
> This problem might make regionserver can't exit because regionserver will
> wait all SecureConnection closed when exiting. A simple way to fix this bug
> is to catch InterruptedException in SecureClient#setupIOstreams() and close
> the SecureConnection.
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