Compress keeper snapshots with default ZSTD codec#29417
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Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):
Now ClickHouse Keeper snapshots compressed with
ZSTDcodec by default instead of custom ClickHouse LZ4 block compression. This behavior can be turned off withcompress_snapshots_with_zstd_formatcoordination setting (must be equal on all quorum replicas). Backward incompatibility is quite rare and may happen only when new node will send snapshot (happens in case of recovery) to the old node which is unable to read snapshots in ZSTD format.