[
https://issues.apache.org/jira/browse/SENTRY-2221?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Na Li reassigned SENTRY-2221:
-----------------------------
Assignee: (was: Na Li)
> 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
> Priority: Major
>
> 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)
