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https://issues.apache.org/jira/browse/HIVE-19203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16508707#comment-16508707
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Alice Fan commented on HIVE-19203:
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[~belugabehr] and [~aihuaxu],
Variable nextSerialNum is changed to AtomicInteger. Please review and provide
feedback. Thanks!
> Thread-Safety Issue in HiveMetaStore
> ------------------------------------
>
> Key: HIVE-19203
> URL: https://issues.apache.org/jira/browse/HIVE-19203
> Project: Hive
> Issue Type: Bug
> Components: Metastore
> Affects Versions: 3.0.0
> Reporter: BELUGA BEHR
> Assignee: Alice Fan
> Priority: Minor
> Attachments: HIVE-19203.1.patch
>
>
> [https://github.com/apache/hive/blob/550d1e1196b7c801c572092db974a459aac6c249/standalone-metastore/src/main/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java#L345-L351]
> {code:java}
> private static int nextSerialNum = 0;
> private static ThreadLocal<Integer> threadLocalId = new
> ThreadLocal<Integer>() {
> @Override
> protected Integer initialValue() {
> return nextSerialNum++;
> }
> };{code}
>
> {{nextSerialNum}} needs to be an atomic value.
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