[Samba] Maximum monitor timeout count 20 reached. Making node unhealthy
Isaac Stone
isaac.stone at som.com
Wed Apr 7 03:31:33 UTC 2021
Running clustered samba + ctdb, pushing our new system from dev to prod and
ran into this issue. Never saw in dev and staging in six months of testing,
no idea what it means
We are running a cluster of only one node while we transfer the production
data to the new system, so the box complaining is the only box that exists
as far as ctdb knows (the only entry in the nodes file is itself)
Was down for an hour and a half today repeating every ~45 seconds
"Maximum monitor timeout count 20 reached. Making node unhealthy"
then it recovered
do idea what happened and google is empty
Samba version 4.13.7-SerNet-RedHat-11.el8
CTDB version 4.13.7-SerNet-RedHat-11.el8
ctdb statistics
CTDB version 1
Current time of statistics : Wed Apr 7 03:29:46 2021
Statistics collected since : (000 09:38:34) Tue Apr 6 17:51:12 2021
num_clients 22
frozen 0
recovering 0
num_recoveries 1
client_packets_sent 1713374
client_packets_recv 3294796
node_packets_sent 2582766
node_packets_recv 0
keepalive_packets_sent 0
keepalive_packets_recv 0
node
req_call 0
reply_call 0
req_dmaster 0
reply_dmaster 0
reply_error 0
req_message 34655
req_control 2078103
reply_control 470008
req_tunnel 0
client
req_call 1208635
req_message 34661
req_control 2051500
req_tunnel 0
timeouts
call 0
control 0
traverse 0
locks
num_calls 8
num_current 0
num_pending 0
num_failed 0
total_calls 1208635
pending_calls 0
childwrite_calls 3
pending_childwrite_calls 0
memory_used 1454200
max_hop_count 0
total_ro_delegations 0
total_ro_revokes 0
hop_count_buckets: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
lock_buckets: 0 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0
locks_latency MIN/AVG/MAX 0.002119/0.002257/0.002505 sec out of 8
reclock_ctdbd MIN/AVG/MAX 0.000000/0.000000/0.000000 sec out of 0
reclock_recd MIN/AVG/MAX 4.100998/4.100998/4.100998 sec out of 1
call_latency MIN/AVG/MAX 0.000004/0.000013/0.007420 sec out of
1208635
childwrite_latency MIN/AVG/MAX 0.000869/0.001203/0.001572 sec out of 3
Any ideas?
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