postpone_reason
SELECT count(), type FROM system.replication_queue GROUP BY type ┌─count()─┬─type────────┐ │ 180 │ MERGE_PARTS │ │ 4091 │ GET_PART │ └─────────┴─────────────┘
Причины postpone: Not executing log entry for part 20170730_20170730_851_859_1 because its size (22.21 MiB) is greater than current maximum (4.23 MiB) Not merging into part 20170730_20170730_775_807_3 because part 20170730_20170730_807_807_0 is not ready yet (log entry for that part is being processed).
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