DSE cassandra version 4.6.5 service down ,
We have 06 nodes of which 02 nodes seen as down with "nodetool status" , if I look at system.log file i don't see any ERROR message , but i could see compaction INFO written on 2021-01-10 like below .
I donot see/have debug.log or gc log files under /var/lig/cassandra but only see system.log , how will I decide(come to know) on what specific day Cassandra service went down because last message written on 10th of Jan but i am checking the system.log file on 21st Jan , since Service was down i just started the dse service(service dse start)
INFO [CompactionExecutor:3430] 2021-01-10 03:43:23,176 ColumnFamilyStore.java (line 795) Enqueuing flush of Memtable-compactions_in_progress@1498458146(0/0 serialized/live bytes, 1 ops)
INFO [FlushWriter:5394] 2021-01-10 03:43:23,176 Memtable.java (line 358) Writing Memtable-compactions_in_progress@1498458146(0/0 serialized/live bytes, 1 ops)
INFO [FlushWriter:5394] 2021-01-10 03:43:23,189 Memtable.java (line 398) Completed flushing /var/lib/cassandra/data/system/compactions_in_progress/system-compactions_in_progress-jb-468598-Data.db (42 bytes) for commitlog position ReplayPosition(segmentId=1606018804642, position=251462)
INFO [CompactionExecutor:3430] 2021-01-10 03:43:23,204 CompactionTask.java (line 299) Compacted 4 sstables to [/var/lib/cassandra/data/yap/authsession/yap-authsession-jb-108105,]. 41,690,257 bytes to 38,504,093 (~92% of original) in 4,919ms = 7.465006MB/s. 120,347 total partitions merged to 120,255. Partition merge counts were {1:120164, 2:90, 3:1, }
