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Posted to notifications@accumulo.apache.org by "dlmarion (via GitHub)" <gi...@apache.org> on 2023/04/17 21:43:51 UTC
[GitHub] [accumulo] dlmarion opened a new issue, #3310: OnDemand Follow-on: Resolve how Tablet.java will stay in sync with metadata changes
dlmarion opened a new issue, #3310:
URL: https://github.com/apache/accumulo/issues/3310
Specifically, resolve todo at line 236 in Tablet.java. The hostingGoal could be updated by a user (ALWAYS <-> ONDEMAND) while the Tablet is hosted and in-memory. I don't think we need to worry about the NEVER case, as that would cause the Tablet to become unhosted.
Generally, tablet management functions that are moved to the Manager (e.g. Bulk Import, Compaction, etc) will likely modify the TabletMetadata. For any hosted Tablet, how will the Tablet object stay in sync?
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Re: [I] OnDemand Follow-on: Resolve how Tablet.java will stay in sync with metadata changes [accumulo]
Posted by "keith-turner (via GitHub)" <gi...@apache.org>.
keith-turner commented on issue #3310:
URL: https://github.com/apache/accumulo/issues/3310#issuecomment-1766569017
> #3350 added TabletServerClientService.refreshTablets. I assume we just need to add a call to this in the correct places to resolve this issue?
When refresh was first added it had race conditions on the tserver side. Those were cleaned up and fixed in #3625 and #3634. There is still work that could be done to clean up the overall locking in the tserver, which is outlined in #3670. Cleaning up locking the in the tablet would be good since compactions and bulk import were removed and the tablet code is simpler.
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Re: [I] OnDemand Follow-on: Resolve how Tablet.java will stay in sync with metadata changes [accumulo]
Posted by "dlmarion (via GitHub)" <gi...@apache.org>.
dlmarion commented on issue #3310:
URL: https://github.com/apache/accumulo/issues/3310#issuecomment-1766557546
#3350 added `TabletServerClientService.refreshTablets`. I assume we just need to add a call to this in the correct places to resolve this issue?
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Re: [I] OnDemand Follow-on: Resolve how Tablet.java will stay in sync with metadata changes [accumulo]
Posted by "keith-turner (via GitHub)" <gi...@apache.org>.
keith-turner closed issue #3310: OnDemand Follow-on: Resolve how Tablet.java will stay in sync with metadata changes
URL: https://github.com/apache/accumulo/issues/3310
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[GitHub] [accumulo] keith-turner commented on issue #3310: OnDemand Follow-on: Resolve how Tablet.java will stay in sync with metadata changes
Posted by "keith-turner (via GitHub)" <gi...@apache.org>.
keith-turner commented on issue #3310:
URL: https://github.com/apache/accumulo/issues/3310#issuecomment-1512256822
May be easier to work on this after functionality is removed from the tablet server. Then we will only need to update the code that is left behind in the tablet server.
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Re: [I] OnDemand Follow-on: Resolve how Tablet.java will stay in sync with metadata changes [accumulo]
Posted by "keith-turner (via GitHub)" <gi...@apache.org>.
keith-turner commented on issue #3310:
URL: https://github.com/apache/accumulo/issues/3310#issuecomment-1766573833
Also compaction commit has a customized refresh processes that could be simplified by using FATE as outlined in #3559
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Re: [I] OnDemand Follow-on: Resolve how Tablet.java will stay in sync with metadata changes [accumulo]
Posted by "keith-turner (via GitHub)" <gi...@apache.org>.
keith-turner commented on issue #3310:
URL: https://github.com/apache/accumulo/issues/3310#issuecomment-1766651214
Closing this issue, the work is done and follow on issue are open for potential improvements.
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