Zimbra FOSS 8.7.11 (upgraded from 8.6), Ubuntu 16.04.
I have 3 MMR nodes. One of them have higher cpu usage. I have checked journalctl and there is many logs like this
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mar 13 11:27:11 host2 slapd[27393]: log csn 20180313094706.903171Z#000000#001#000000
mar 13 11:27:11 host2 slapd[27393]: cmp -1, too old
mar 13 11:27:11 host2 slapd[27393]: log csn 20180313094711.502080Z#000000#001#000000
mar 13 11:27:11 host2 slapd[27393]: cmp -1, too old
mar 13 11:27:11 host2 slapd[27393]: log csn 20180313094711.955960Z#000000#001#000000
mar 13 11:27:11 host2 slapd[27393]: cmp -1, too old
mar 13 11:27:11 host2 slapd[27393]: log csn 20180313094712.520711Z#000000#001#000000
mar 13 11:27:11 host2 slapd[27393]: cmp -1, too old
mar 13 11:27:11 host2 slapd[27393]: log csn 20180313094715.972866Z#000000#001#000000
mar 13 11:27:11 host2 slapd[27393]: cmp -1, too old
mar 13 11:27:11 host2 slapd[27393]: log csn 20180313094717.419157Z#000000#001#000000
mar 13 11:27:11 host2 slapd[27393]: cmp -1, too old
I have also checked database size and problematic node have smaller database in relation to the other two nodes. What can be a problem?