I did some additional cleanup and restarted mon on all nodes. Manual compaction is now shown on all nodes. Is this normal operating mode? As it seems to be sporadic, could it have an effect on
performance i.e. cause slow ops. Is there a way to limit it and is there a document that explains those things.
Thank you again,
On 3/17/2019 4:11 AM, Alex Litvak wrote:
Hello everyone,
I am getting a huge number of messages on one out of three nodes showing Manual compaction starting all the time. I see no such of log entries on the other nodes in the cluster.
Mar 16 06:40:11 storage1n1-chi docker[24502]: debug 2019-03-16 06:40:11.441 7f6967af4700 4 rocksdb:
[/home/jenkins-build/build/workspace/ceph-build/ARCH/x86_64/AVAILABLE_ARCH/x86_64/AVAILABLE_DIST/centos7/DIST/centos7/MACHINE_SIZE/huge/release/13.2.2/rpm/el7/BUILD/ceph-13.2.2/src/rocksdb/db/db_impl_compaction_flush.cc:1024]
[default] Manual compaction starting
Mar 16 06:40:11 storage1n1-chi docker[24502]: message repeated 4 times: [ debug 2019-03-16 06:40:11.441 7f6967af4700 4 rocksdb:
[/home/jenkins-build/build/workspace/ceph-build/ARCH/x86_64/AVAILABLE_ARCH/x86_64/AVAILABLE_DIST/centos7/DIST/centos7/MACHINE_SIZE/huge/release/13.2.2/rpm/el7/BUILD/ceph-13.2.2/src/rocksdb/db/db_impl_compaction_flush.cc:1024]
[default] Manual compaction starting]
Mar 16 06:42:21 storage1n1-chi docker[24502]: debug 2019-03-16 06:42:21.466 7f6970305700 4 rocksdb:
[/home/jenkins-build/build/workspace/ceph-build/ARCH/x86_64/AVAILABLE_ARCH/x86_64/AVAILABLE_DIST/centos7/DIST/centos7/MACHINE_SIZE/huge/release/13.2.2/rpm/el7/BUILD/ceph-13.2.2/src/rocksdb/db/db_impl_compaction_flush.cc:77]
[JOB 1021] Syncing log #194307
I am not sure what triggers those message on one node an not on the others.
Checking config on all mons
debug_leveldb 4/5 override
debug_memdb 4/5 override
debug_mgr 0/5 override
debug_mgrc 0/5 override
debug_rocksdb 4/5 override
Documentation tells nothing about the compaction logs or at least I couldn't find anything specific to my issue.
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