Details
-
Bug
-
Resolution: Fixed
-
Critical
-
7.6.2
-
Triaged
-
0
-
Yes
Description
Hit while running tests for MB-62004.
https://perf.jenkins.couchbase.com/job/oceanus-remotelink-dev/33/console
15:44:28 2024-06-03T06:44:28 [INFO] ep_dcp_replica_items_remaining = 347034
|
15:44:29 2024-06-03T06:44:29 [INFO] ep_dcp_replica_items_remaining = 347034
|
15:44:30 2024-06-03T06:44:30 [INFO] ep_dcp_replica_items_remaining = 347034
|
..
|
The test runs with dcp_backfill_byte_drain_ratio=1.0.
Live debugging shows DCP replication cursors stuck at the beginning of the open checkpoint for multiple vbuckets:
ep_dcp_items_remaining: 168190
|
eq_dcpq:replication:ns_1@172.23.96.5->ns_1@172.23.96.7:bucket-1:dcp_ready_queue_size: 0
|
eq_dcpq:replication:ns_1@172.23.96.5->ns_1@172.23.96.7:bucket-1:items_remaining: 168190
|
eq_dcpq:replication:ns_1@172.23.96.5->ns_1@172.23.96.7:bucket-1:stream_4: {"backfill_buffer_bytes":"0","backfill_buffer_items":"0","backfill_disk_items":"0","backfill_mem_items":"0","backfill_sent":"0","change_streams_enabled":"false","cursor_registered":"true","end_seqno":"18446744073709551615","filter_type":"passthrough","flags":"0","items_ready":"false","last_read_seqno":"13327","last_sent_seqno":"13327","last_sent_seqno_advance":"0","last_sent_snap_end_seqno":"13327","memory_phase":"13327","opaque":"7","readyQ_items":"0","ready_queue_memory":"0","snap_end_seqno":"0","snap_start_seqno":"0","start_seqno":"0","state":"backfilling","vb_uuid":"0"}
|
|
|
vb_4:eq_dcpq:replication:ns_1@172.23.96.5->ns_1@172.23.96.7:bucket-1:cursor_checkpoint_id: 1378
|
vb_4:eq_dcpq:replication:ns_1@172.23.96.5->ns_1@172.23.96.7:bucket-1:cursor_distance: 0
|
vb_4:eq_dcpq:replication:ns_1@172.23.96.5->ns_1@172.23.96.7:bucket-1:cursor_op: empty
|
vb_4:eq_dcpq:replication:ns_1@172.23.96.5->ns_1@172.23.96.7:bucket-1:cursor_seqno: 310337
|
vb_4:eq_dcpq:replication:ns_1@172.23.96.5->ns_1@172.23.96.7:bucket-1:num_items_for_cursor: 691
|
vb_4:eq_dcpq:replication:ns_1@172.23.96.5->ns_1@172.23.96.7:bucket-1:num_visits: 0
|
vb_4:id_1378:highest_expelled_seqno: 0
|
vb_4:id_1378:historical: false
|
vb_4:id_1378:key_index_allocator_bytes: 52352
|
vb_4:id_1378:mem_usage_key_index_overhead: 11178
|
vb_4:id_1378:mem_usage_queue_overhead: 16608
|
vb_4:id_1378:mem_usage_queued_items: 312774
|
vb_4:id_1378:num_cursors_in_checkpoint: 2
|
vb_4:id_1378:num_items: 691
|
vb_4:id_1378:queue_allocator_bytes: 16608
|
vb_4:id_1378:snap_end: 311026
|
vb_4:id_1378:snap_start: 310337
|
vb_4:id_1378:state: Open
|
vb_4:id_1378:type: Memory
|
vb_4:id_1378:visible_snap_end: 311026
|
vb_4:mem_usage: 341008
|
vb_4:mem_usage_key_index_overhead: 11178
|
vb_4:mem_usage_queue_overhead: 16608
|
vb_4:mem_usage_queued_items: 312774
|
vb_4:num_checkpoint_items: 691
|
vb_4:num_checkpoints: 1
|
vb_4:num_conn_cursors: 2
|
vb_4:num_open_checkpoint_items: 691
|
vb_4:open_checkpoint_id: 1378
|
vb_4:persistence:cursor_checkpoint_id: 1378
|
vb_4:persistence:cursor_distance: 691
|
vb_4:persistence:cursor_op: mutation
|
vb_4:persistence:cursor_seqno: 311026
|
vb_4:persistence:num_items_for_cursor: 0
|
vb_4:persistence:num_visits: 15
|
vb_4:state: active
|
Attachments
Issue Links
- is triggered by
-
MB-61257 Analytics incr. ingestion 60% slower on 7.6 vs 7.2.4 with default collection
- Closed
For Gerrit Dashboard: MB-62152 | ||||||
---|---|---|---|---|---|---|
# | Subject | Branch | Project | Status | CR | V |
210814,2 | MB-62152: Fix the dcp_backfill_byte_drain_ratio=1.0 case | trinity | kv_engine | Status: MERGED | +2 | +1 |
211426,1 | Merge remote-tracking branch 'couchbase/trinity' into trunk | master | kv_engine | Status: MERGED | +2 | +1 |