Na Li created SENTRY-2221:
-----------------------------
Summary: Speedup DDL operation when it is blocked by fetching HMS
Notification
Key: SENTRY-2221
URL: https://issues.apache.org/jira/browse/SENTRY-2221
Project: Sentry
Issue Type: Improvement
Reporter: Na Li
Right now, after HMS completes a DDL operation, it calls Sentry
SentrySyncHMSNotificationsPostEventListener to make sure that sentry fetches
the notification before HMS returns.
The HMS threads blocks until HMSFollower threads fetches the notification and
wakes up the waiter, which happens once every half a second (by default).
When there is a single Sentry server, the delay could be around 0.5 second.
With Sentry HA, the delay could be up to one second because Sentry leader takes
0.5 second to get the notification and save into sentry DB, and another Sentry
server takes 0.5 second to reads from sentry DB.
To speedup the HMS DDL and reduce the delay, Sentry can try to wake up the
waiter in HMS thread, and then wait on it in
SentryPolicyStoreProcessor.sentry_sync_notifications.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
