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From "ASF subversion and git services (Jira)" <>
Subject [jira] [Commented] (SOLR-13813) Shared storage online split support
Date Tue, 03 Dec 2019 16:44:00 GMT


ASF subversion and git services commented on SOLR-13813:

Commit 30b49b6d6017823280c3ca27e792cd88bf47607d in lucene-solr's branch refs/heads/jira/SOLR-13101
from Yonik Seeley
[;h=30b49b6 ]

SOLR-13813: change test sleeps to latches (#1054)

> Shared storage online split support
> -----------------------------------
>                 Key: SOLR-13813
>                 URL:
>             Project: Solr
>          Issue Type: Sub-task
>            Reporter: Yonik Seeley
>            Priority: Major
>          Time Spent: 1h
>  Remaining Estimate: 0h
> The strategy for online shard splitting is the same as that for normal (non SHARED shards.)
> During a split, the leader will forward updates to sub-shard leaders, those updates will
be buffered by the transaction log while the split is in progress, and then the buffered updates
are replayed.
> One change that was added was to push the local index to blob store after buffered updates
are applied (but before it is marked as ACTIVE):
> See
> This issue is about adding tests and ensuring that online shard splitting (while updates
are flowing) works reliably.

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