[
https://issues.apache.org/jira/browse/HIVE-28788?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Zhihua Deng updated HIVE-28788:
-------------------------------
Description:
If there is an exception on committing the transaction,
[https://github.com/apache/hive/blob/master/standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/ObjectStore.java#L658,]
the ObjectStore will skip the transaction rollback, as the openTrasactionCalls
is 0, the current transaction might be alive until the RetryingHMSHandler
retries the operation or the client closes the connection, leading to the
connection starvation during that time.
was:
If there is an exception on committing the transaction,
[https://github.com/apache/hive/blob/master/standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/ObjectStore.java#L658,]
the ObjectStore will skip the transaction rollback, as the openTrasactionCalls
is 0, the current transaction might be alive until the RetryingHMSHandler
retries the operation successfully or the client closes the connection, leading
to the connection starvation during that time, especially for the ObjectStore
secondary pool, which has a size of 2.
> ObjectStore failed to commit the transaction could lead to connection
> starvation
> --------------------------------------------------------------------------------
>
> Key: HIVE-28788
> URL: https://issues.apache.org/jira/browse/HIVE-28788
> Project: Hive
> Issue Type: Bug
> Reporter: Zhihua Deng
> Assignee: Zhihua Deng
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.1.0
>
>
> If there is an exception on committing the transaction,
> [https://github.com/apache/hive/blob/master/standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/ObjectStore.java#L658,]
> the ObjectStore will skip the transaction rollback, as the
> openTrasactionCalls is 0, the current transaction might be alive until the
> RetryingHMSHandler retries the operation or the client closes the connection,
> leading to the connection starvation during that time.
>
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