Jyotirmoy Sinha created HDDS-9871:
-------------------------------------
Summary: [snapshot] Snapshot diff request failing when setting
ozone.om.snapshot.db.max.open.files=-1
Key: HDDS-9871
URL: https://issues.apache.org/jira/browse/HDDS-9871
Project: Apache Ozone
Issue Type: Bug
Components: Snapshot
Reporter: Jyotirmoy Sinha
Snapshot diff request failing when setting
ozone.om.snapshot.db.max.open.files=-1, due to double flush buffer issue.
Snapshot creation request:
2023-11-27 00:40:23,345 INFO [OM StateMachine ApplyTransaction Thread -
0]-org.apache.hadoop.ozone.om.request.snapshot.OMSnapshotCreateRequest: Created
snapshot: 'snap-ay36z' with snapshotId: 'bf0c6141-4185-4361-b15f-c4aa71c5c6d8'
under path 'vol-2xd36/buck-id806'
Double Buffer flush logs:
...
2023-11-27 00:10:23,826 INFO
[OMDoubleBufferFlushThread]-org.apache.hadoop.hdds.utils.db.RDBCheckpointManager:
Created checkpoint in rocksDB at
/var/lib/hadoop-ozone/om/data035525/db.snapshots/checkpointState/om.db-b2e9acb3-fee2-4190-8272-0649edca8d93
in 30 milliseconds
2023-11-27 00:10:23,827 INFO
[OMDoubleBufferFlushThread]-org.apache.hadoop.hdds.utils.db.RDBCheckpointUtils:
Waited for 1 milliseconds for checkpoint directory
/var/lib/hadoop-ozone/om/data035525/db.snapshots/checkpointState/om.db-b2e9acb3-fee2-4190-8272-0649edca8d93
availability.
2023-11-27 00:10:23,828 INFO
[OMDoubleBufferFlushThread]-org.apache.hadoop.ozone.om.OmSnapshotManager:
Created checkpoint :
/var/lib/hadoop-ozone/om/data035525/db.snapshots/checkpointState/om.db-b2e9acb3-fee2-4190-8272-0649edca8d93
for snapshot snap-mswq9
2023-11-27 00:10:39,586 INFO
[OMDoubleBufferFlushThread]-org.apache.hadoop.hdds.utils.db.RDBCheckpointManager:
Created checkpoint in rocksDB at
/var/lib/hadoop-ozone/om/data035525/db.snapshots/checkpointState/om.db-3369ac3a-61e1-4eca-b3cf-eb2de0b2d688
in 30 milliseconds
2023-11-27 00:10:39,586 INFO
[OMDoubleBufferFlushThread]-org.apache.hadoop.hdds.utils.db.RDBCheckpointUtils:
Waited for 0 milliseconds for checkpoint directory
/var/lib/hadoop-ozone/om/data035525/db.snapshots/checkpointState/om.db-3369ac3a-61e1-4eca-b3cf-eb2de0b2d688
availability.
2023-11-27 00:10:39,587 INFO
[OMDoubleBufferFlushThread]-org.apache.hadoop.ozone.om.OmSnapshotManager:
Created checkpoint :
/var/lib/hadoop-ozone/om/data035525/db.snapshots/checkpointState/om.db-3369ac3a-61e1-4eca-b3cf-eb2de0b2d688
for snapshot snap-f5u3t
2023-11-27 00:10:55,949 INFO
[OMDoubleBufferFlushThread]-org.apache.hadoop.hdds.utils.db.RDBCheckpointManager:
Created checkpoint in rocksDB at
/var/lib/hadoop-ozone/om/data035525/db.snapshots/checkpointState/om.db-3a690c8f-f3ef-415d-b25c-3aaf763c9507
in 22 milliseconds
2023-11-27 00:10:55,950 INFO
[OMDoubleBufferFlushThread]-org.apache.hadoop.hdds.utils.db.RDBCheckpointUtils:
Waited for 1 milliseconds for checkpoint directory
/var/lib/hadoop-ozone/om/data035525/db.snapshots/checkpointState/om.db-3a690c8f-f3ef-415d-b25c-3aaf763c9507
availability.
2023-11-27 00:10:55,950 INFO
[OMDoubleBufferFlushThread]-org.apache.hadoop.ozone.om.OmSnapshotManager:
Created checkpoint :
/var/lib/hadoop-ozone/om/data035525/db.snapshots/checkpointState/om.db-3a690c8f-f3ef-415d-b25c-3aaf763c9507
for snapshot snap-jfktn
2023-11-29 08:52:24,698 INFO
[OMDoubleBufferFlushThread]-org.apache.hadoop.hdds.utils.db.RDBCheckpointManager:
Created checkpoint in rocksDB at
/var/lib/hadoop-ozone/om/data035525/db.snapshots/checkpointState/om.db-c3ba17ef-d947-454e-9c4f-b9063ae65650
in 15 milliseconds
2023-11-29 08:52:24,715 INFO
[OMDoubleBufferFlushThread]-org.apache.hadoop.hdds.utils.db.RDBCheckpointUtils:
Waited for 16 milliseconds for checkpoint directory
/var/lib/hadoop-ozone/om/data035525/db.snapshots/checkpointState/om.db-c3ba17ef-d947-454e-9c4f-b9063ae65650
availability.
2023-11-29 08:52:24,717 WARN
[OMDoubleBufferFlushThread]-org.apache.hadoop.ozone.om.OmSnapshotManager: Took
614733 ns to find endKey. Caller is deleteKeysFromDelKeyTableInSnapshotScope
2023-11-29 08:52:24,718 INFO
[OMDoubleBufferFlushThread]-org.apache.hadoop.ozone.om.OmSnapshotManager:
Created checkpoint :
/var/lib/hadoop-ozone/om/data035525/db.snapshots/checkpointState/om.db-c3ba17ef-d947-454e-9c4f-b9063ae65650
for snapshot snap-ay36z
2023-11-29 08:52:24,745 INFO
[OMDoubleBufferFlushThread]-org.apache.hadoop.hdds.utils.db.RDBCheckpointManager:
Created checkpoint in rocksDB at
/var/lib/hadoop-ozone/om/data035525/db.snapshots/checkpointState/om.db-bf0c6141-4185-4361-b15f-c4aa71c5c6d8
in 12 milliseconds
2023-11-29 08:52:24,746 INFO
[OMDoubleBufferFlushThread]-org.apache.hadoop.hdds.utils.db.RDBCheckpointUtils:
Waited for 0 milliseconds for checkpoint directory
/var/lib/hadoop-ozone/om/data035525/db.snapshots/checkpointState/om.db-bf0c6141-4185-4361-b15f-c4aa71c5c6d8
availability.
2023-11-29 08:52:24,747 INFO
[OMDoubleBufferFlushThread]-org.apache.hadoop.ozone.om.OmSnapshotManager:
Created checkpoint :
/var/lib/hadoop-ozone/om/data035525/db.snapshots/checkpointState/om.db-bf0c6141-4185-4361-b15f-c4aa71c5c6d8
for snapshot snap-ay36z
...
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