2026.10.27 12:52:38.919528 [ 344 ] {} <Warning> Context: Server was built with sanitizer. It will work slowly.
2026.10.27 12:52:38.922013 [ 344 ] {} <Warning> Context: The setting 'allow_remote_fs_zero_copy_replication' is enabled for MergeTree tables. But the feature of 'zero-copy replication' is under development and is not ready for production. The usage of this feature can lead to data corruption and loss. The setting should be disabled in production.
2026.10.27 12:52:39.706493 [ 344 ] {} <Warning> Context: The setting 'merge_tree_metadata_cache' is enabled. But the feature of 'metadata cache in RocksDB' is experimental and is not ready for production. The usage of this feature can lead to data corruption and loss. The setting should be disabled in production. See the corresponding report at https://github.com/ClickHouse/ClickHouse/issues/51182
2026.10.27 12:52:40.063049 [ 344 ] {} <Warning> KeeperLogStore: No logs exists in /var/lib/clickhouse/coordination/logs. It's Ok if it's the first run of clickhouse-keeper.
2026.10.27 12:52:40.064644 [ 344 ] {} <Warning> KeeperLogStore: Removing all changelogs
2026.10.27 12:52:40.065742 [ 344 ] {} <Warning> KeeperServer: Got 1000000000000000 value for setting 'reserved_log_items' which is bigger than int32_t max value, lowering value to 2147483647.
2026.10.27 12:52:40.074672 [ 344 ] {} <Warning> KeeperStateManager: No state was read
2026.10.27 12:52:40.074734 [ 344 ] {} <Warning> RaftInstance: invalid election timeout lower bound detected, adjusted to 0
2026.10.27 12:52:40.074772 [ 344 ] {} <Warning> RaftInstance: invalid election timeout upper bound detected, adjusted to 0
2026.10.27 12:52:40.126835 [ 567 ] {} <Warning> RaftInstance: Election timeout, initiate leader election
2026.10.27 12:52:40.178593 [ 344 ] {} <Warning> Access(local_directory): File /var/lib/clickhouse/access/users.list doesn't exist
2026.10.27 12:52:40.178642 [ 344 ] {} <Warning> Access(local_directory): Recovering lists in directory /var/lib/clickhouse/access/
2026.10.27 12:52:40.296463 [ 344 ] {} <Warning> Context: Table system.session_log is enabled. It's unreliable and may contain garbage. Do not use it for any kind of security monitoring.