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https://issues.apache.org/jira/browse/HIVE-20043?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Laszlo Bodor updated HIVE-20043:
--------------------------------
Attachment: HIVE-20043.03.patch
> HiveServer2: SessionState has a static sync block around an AtomicBoolean
> -------------------------------------------------------------------------
>
> Key: HIVE-20043
> URL: https://issues.apache.org/jira/browse/HIVE-20043
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2
> Affects Versions: 3.0.0
> Reporter: Gopal V
> Assignee: Laszlo Bodor
> Priority: Major
> Labels: Branch3Candidate, Concurrency
> Attachments: HIVE-20043.01.patch, HIVE-20043.02.patch,
> HIVE-20043.03.patch
>
>
> {code}
> private static void start(SessionState startSs, boolean isAsync, LogHelper
> console) {
> ...
> synchronized(SessionState.class) {
> if (!startSs.isStarted.compareAndSet(false, true)) {
> return;
> }
> }
> {code}
> startSs.isStarted is an AtomicBoolean, which makes it hard to know why this
> code is locked with a static lock.
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