Shalin Shekhar Mangar created SOLR-9447:
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Summary: Do not clone SolrInputDocument if update processor chain
does not contain custom processors
Key: SOLR-9447
URL: https://issues.apache.org/jira/browse/SOLR-9447
Project: Solr
Issue Type: Improvement
Security Level: Public (Default Security Level. Issues are Public)
Components: SolrCloud
Reporter: Shalin Shekhar Mangar
Assignee: Shalin Shekhar Mangar
Fix For: master (7.0), 6.3
In SOLR-3215 we started cloning documents before adding them locally and send
the cloned copy to replicas. This was done because processors after
DistributedUpdateProcessor can affect the docs before they are sent to the
replicas.
However, we can avoid the deep copy if we know for sure that the processors
after DUP are one of (LogUpdateProcessor, RunUpdateProcessor,
TolerantUpdateProcessor) which definitely do not modify the document. This
ensures that the common case is optimized.
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