Shalin Shekhar Mangar created SOLR-10515:
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Summary: Persist intermediate trigger state in ZK to continue
tracking information across overseer restarts
Key: SOLR-10515
URL: https://issues.apache.org/jira/browse/SOLR-10515
Project: Solr
Issue Type: Sub-task
Security Level: Public (Default Security Level. Issues are Public)
Components: SolrCloud
Reporter: Shalin Shekhar Mangar
Fix For: master (7.0)
The current trigger design is simplistic and keeps all the intermediate state
in memory. But this presents two problems when the overseer itself fails:
# We lose tracking state such as which node was added before the overseer
restarted
# A nodeLost trigger can never really fire for the overseer node itself
So we need a way, preferably in the trigger API itself to save intermediate
state or checkpoints so that it can seamlessly continue on overseer restarts.
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