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changes.mady.by.user Tom Li

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changes.mady.by.user Sankar Hariappan

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Comment: Added work around to enable rename when HS2 crashes when bootstrap dump in progress.

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This call is intended to be synchronous, and expects the caller to wait for the result.

Bootstrap note : The FROM clause means that we read the event log to determine what to dump. For bootstrapping, we would not use FROM.

When bootstrap dump is in progress, it blocks rename table/partition operations on any tables of the dumped database and throws HiveException. Once bootstrap dump is completed, rename operations are enabled and will work as normal. If HiveServer2 crashes when bootstrap dump in progress, then rename operations will continue to throw HiveException even after HiveServer2 is restored with no REPL DUMP in progress. This abnormal state should be manually fixed using following work around. 

 Look up the HiveServer logs for below pair of log messages.

REPL DUMP:: Set property for Database: <db_name>, Property: <bootstrap.dump.state.xxxx>, Value: ACTIVE

REPL DUMP:: Reset property for Database: <db_name>, Property: <bootstrap.dump.state.xxxx>

If Reset property log is not found for the corresponding Set property log, then user need to manually reset the database property <bootstrap.dump.state.xxxx> with value as "IDLE" using ALTER DATABASE command.

REPL LOAD

REPL LOAD [<dbname>[.<tablename>]] FROM <dirname>;

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