Hello again!
Bowen, your answer was right. After forcing clock synchronization, the
count of MUTATION messages radically dropped down. After sync I made
full repair on affected nodes and now I don't have any MUTATION drops
in logs. Thanks for your help!
вт, 12 апр. 2022 г. в 12:31, Bowen Song :
>
First thing to check, do you have NTP client running on all Cassandra
servers? Are their clock in sync? If you answer "yes" to both, check the
server load, does any server have high CPU usage or disk utilization?
Any swapping activity? If not, check the GC logs, and looking for long
GC pauses.
Hello.
I've got two DCs with 8 hardware servers on each. After migration to
Cassandra 4 I have strange messages in system.log:
INFO [ScheduledTasks:1] 2022-04-12 12:05:58,595
MessagingMetrics.java:206 - MUTATION_RSP messages were dropped in last
5000 ms: 0 internal and 241 cross node. Mean inter
