Yonik Seeley created SOLR-13813:
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Summary: Shared storage online split support
Key: SOLR-13813
URL: https://issues.apache.org/jira/browse/SOLR-13813
Project: Solr
Issue Type: Sub-task
Reporter: Yonik Seeley
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
https://github.com/apache/lucene-solr/commit/fe17c813f5fe6773c0527f639b9e5c598b98c7d4#diff-081b7c2242d674bb175b41b6afc21663
This issue is about adding tests and ensuring that online shard splitting
(while updates are flowing) works reliably.
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