Pushkar Raste created SOLR-9689:
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Summary: Process updates concurrently during {{PeerSync}}
Key: SOLR-9689
URL: https://issues.apache.org/jira/browse/SOLR-9689
Project: Solr
Issue Type: Improvement
Security Level: Public (Default Security Level. Issues are Public)
Reporter: Pushkar Raste
This came up during discussion with [~shalinmangar]
During {{PeerSync}}, updates are applied one a time by looping through the
updates received from the leader. This is slow and could keep node in recovery
for a long time if number of updates to apply were large.
We can apply updates concurrently, this should be no different than what could
happen during normal indexing (we can't really ensure that a replica will
process updates in the same order as the leader or other replicas).
There are few corner cases around dbq we should be careful about.
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