Corentin Chary created CASSANDRA-12969:
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Summary: Index: index can significantly slow down boot
Key: CASSANDRA-12969
URL: https://issues.apache.org/jira/browse/CASSANDRA-12969
Project: Cassandra
Issue Type: Bug
Components: Core
Reporter: Corentin Chary
Attachments: 0004-index-do-not-re-insert-values-in-IndexInfo.patch
During startup, each existing index is opened and marked as built by adding an
entry in "IndexInfo" and forcing a flush. Because of that we end up flushing
one sstable per index. On systems on HDD this can take minutes for nothing.
Thw following patch allows to avoid creating useless new sstables if the index
was already marked as built and will greatly reduce the startup time (and
improve availability during restarts).
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