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https://issues.apache.org/jira/browse/HIVE-18886?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Gopal V updated HIVE-18886:
---------------------------
Attachment: HIVE-18886.1.patch
> ACID: NPE on unexplained mysql exceptions
> ------------------------------------------
>
> Key: HIVE-18886
> URL: https://issues.apache.org/jira/browse/HIVE-18886
> Project: Hive
> Issue Type: Bug
> Components: Transactions
> Affects Versions: 3.0.0
> Reporter: Gopal V
> Assignee: Gopal V
> Priority: Major
> Attachments: HIVE-18886.1.patch
>
>
> At 200+ sessions on a single HS2, the DbLock impl fails to propagate mysql
> exceptions
> {code}
> 2018-03-06T22:55:16,197 ERROR [HiveServer2-Background-Pool: Thread-12867]:
> ql.Driver (:()) - FAILED: Error in acquiring locks: null
> java.lang.NullPointerException
> at
> org.apache.hadoop.hive.metastore.DatabaseProduct.isDeadlock(DatabaseProduct.java:56)
> at
> org.apache.hadoop.hive.metastore.txn.TxnHandler.checkRetryable(TxnHandler.java:2459)
> at
> org.apache.hadoop.hive.metastore.txn.TxnHandler.getOpenTxns(TxnHandler.java:499)
> {code}
> {code}
> return e instanceof SQLTransactionRollbackException
> || ((dbProduct == MYSQL || dbProduct == POSTGRES || dbProduct ==
> SQLSERVER)
> && e.getSQLState().equals("40001"))
> || (dbProduct == POSTGRES && e.getSQLState().equals("40P01"))
> || (dbProduct == ORACLE && (e.getMessage().contains("deadlock
> detected")
> || e.getMessage().contains("can't serialize access for this
> transaction")));
> {code}
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