[
https://issues.apache.org/jira/browse/SENTRY-1874?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Alexander Kolbasov updated SENTRY-1874:
---------------------------------------
Status: Patch Available (was: In Progress)
> Do not require quiet HMS when taking initial HMS snapshot
> ---------------------------------------------------------
>
> Key: SENTRY-1874
> URL: https://issues.apache.org/jira/browse/SENTRY-1874
> Project: Sentry
> Issue Type: Sub-task
> Components: Sentry
> Affects Versions: 2.0.0
> Reporter: Alexander Kolbasov
> Assignee: Alexander Kolbasov
> Labels: sentry-ha
> Fix For: 2.0.0
>
> Attachments: SENTRY-1874.01.patch
>
>
> When Sentry starts initially, it needs to get a full snapshot from HMS and
> associate it with a specific notification ID. HMS does not provide any
> mechanism to get a consistent snapshot with known notification ID. SO Sentry
> does the following:
> 1) Read current notification ID_0
> 2) Obtain full snapshot from HMS
> 3) Read current notification ID_1
> 4) If (ID_0 != ID_1) goto 1.
> This creates a problem that the process may never converge when there is some
> constant stream of HMS activity affecting notification IDs. We would like to
> be able to use a problem that can converge in the presence of updates.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
