6ffdb19a2a
Today we empty the searchable snapshots cache when cleanly closing a shard, but leak cache files in some cases involving an unclean shutdown. Such leaks are not permanent, they are cleaned up on shard relocation or deletion, but they still might last for arbitrarily long until that happens. This commit introduces a cleanup process that runs during node startup to catch such leaks sooner. Also, today we permit searchable snapshots to be held on custom data paths, and store the corresponding cache files within the custom location. Supporting this feature would make the cleanup process significantly more complicated since it would require each node to parse the index metadata for the shards it held before shutdown. Yet, this feature is undocumented and offers minimal benefits to searchable snapshots. Therefore with this commit we forbid custom data paths for searchable snapshot shards. |
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| .. | ||
| dev-tools | ||
| docs | ||
| license-tools | ||
| plugin | ||
| qa | ||
| snapshot-tool | ||
| test | ||
| transport-client | ||
| NOTICE.txt | ||
| README.md | ||
| build.gradle | ||
README.md
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