Alexey Serbin created KUDU-3648:
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Summary: BUF_ERROR in zlib::Uncompress() when processing HMS
notification event
Key: KUDU-3648
URL: https://issues.apache.org/jira/browse/KUDU-3648
Project: Kudu
Issue Type: Bug
Components: hms, master
Reporter: Alexey Serbin
Under certain conditions, HMS notification listener fails to process messages
in 'gzip(json-2.0)' format, generating warning messages like below. Such a
situation requires manual intervention to restore consistency between Kudu and
HMS. For example, in the example below it was necessary to drop Kudu tables
that hadn't been deleted because of the failure to process corresponding HMS
notification message.
{noformat}
W20250221 15:16:31.617455 2109673 hms_notification_log_listener.cc:293] Failed
to handle Hive Metastore notification: 2977151 DROP_TABLE table_name: Runtime
error: failed decompress message: zlib error: BUF_ERROR
{noformat}
There were reports of this issue manifesting itself when running {{DROP
DATABASE <database_name> CASCADE}} from impala-shell. There was no error
triggered at Impala side (that's due to the design of the Kudu-HMS
integration), but it was necessary to manually drop corresponding Kudu tables.
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