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https://issues.apache.org/jira/browse/HBASE-9157?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jeffrey Zhong updated HBASE-9157:
---------------------------------
Status: Patch Available (was: Open)
> ZKUtil.blockUntilAvailable loops forever with
> KeeperException.ConnectionLossException
> -------------------------------------------------------------------------------------
>
> Key: HBASE-9157
> URL: https://issues.apache.org/jira/browse/HBASE-9157
> Project: HBase
> Issue Type: Bug
> Components: Zookeeper
> Reporter: Jeffrey Zhong
> Assignee: Jeffrey Zhong
> Priority: Minor
> Attachments: hbase-9157.patch
>
>
> In one of integration test, I observed that a thread keeps spinning error
> logs "Unexpected exception handling blockUntilAvailable" due to
> KeeperException.ConnectionLossException. Below is the related code:
> {code}
> while (!finished) {
> try {
> data = ZKUtil.getData(zkw, znode);
> } catch(KeeperException e) {
> LOG.warn("Unexpected exception handling blockUntilAvailable", e);
> }
> if (data == null && (System.currentTimeMillis() +
> HConstants.SOCKET_RETRY_WAIT_MS < endTime)) {
> Thread.sleep(HConstants.SOCKET_RETRY_WAIT_MS);
> } else {
> finished = true;
> }
> }
> {code}
> Since ConnectionLossException & SessionExpiredException are not recoverable
> errors, the while loop can't break.
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