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Zhihua Deng edited comment on HIVE-27201 at 10/10/23 1:14 AM: -------------------------------------------------------------- Attach a document to explain the case. Thank you all for the test, review and merge the PR! was (Author: dengzh): Attach a document to elaborate the case. Thank you all for the test, review and merge the PR! > Inconsistency between session Hive and thread-local Hive may cause HS2 > deadlock > ------------------------------------------------------------------------------- > > Key: HIVE-27201 > URL: https://issues.apache.org/jira/browse/HIVE-27201 > Project: Hive > Issue Type: Bug > Components: HiveServer2 > Reporter: Zhihua Deng > Assignee: Zhihua Deng > Priority: Major > Labels: pull-request-available > Fix For: 4.0.0-beta-1 > > Attachments: HIVE-27201.pdf > > Time Spent: 7h 20m > Remaining Estimate: 0h > > The HiveServer2’s server handler can switch to process the operation from > other session, in such case, the Hive cached in ThreadLocal is not the same > as the Hive in SessionState, and can be referenced by another session. > If the two handlers swap their sessions to process the DatabaseMetaData > request, and the HiveMetastoreClientFactory obtains the Hive via Hive.get(), > then there is a chance that the deadlock can happen. -- This message was sent by Atlassian Jira (v8.20.10#820010)