Wechar created HIVE-27097: ----------------------------- Summary: Improve the retry strategy for Metastore client and server Key: HIVE-27097 URL: https://issues.apache.org/jira/browse/HIVE-27097 Project: Hive Issue Type: Improvement Components: Hive Affects Versions: 4.0.0-alpha-2 Reporter: Wechar Assignee: Wechar
*Background* Hive provides *{{RetryingMetaStoreClient}}* and *{{RetryingHMSHandler}}* to do retry when thrift request failed: * RetryingMetaStoreClient will retry for *thrift related exception* and some *MetaException* * RetryingHMSHandler will retry for all *JDOException*. *Motivation* Current retry mechanism will lead to many unnecessary retries in both client and server. To simplify the process, we introduce following retry mechanism: * Client side only concerns the error of communication, i.e., *TTransportException*. * Server side can skip some exceptions which always turn to fail even with retry, like *SQLIntegrityConstraintViolationException*. -- This message was sent by Atlassian Jira (v8.20.10#820010)