Search found 16 matches

by matteo.fracassetti
Mon Feb 19, 2018 9:18 am
Forum: Administrators
Topic: Insane cpu usage by zmmailboxd
Replies: 26
Views: 11375

Re: Insane cpu usage by zmmailboxd

I'll try as soon as possible.
Thank you.
by matteo.fracassetti
Mon Feb 12, 2018 1:13 pm
Forum: Administrators
Topic: Insane cpu usage by zmmailboxd
Replies: 26
Views: 11375

Re: Insane cpu usage by zmmailboxd

Digging into system logs, I notice we upgraded the CentOS release about a month ago on Jan 12 and updated it again on 02 Feb. CPU issues has started on Fri Jan 19 around 14.00: Load average for 15min start increasing from usual average value near 0,8 up to 22 at 18.30 and it never decrease up to Sat...
by matteo.fracassetti
Sun Feb 11, 2018 9:53 am
Forum: Administrators
Topic: Insane cpu usage by zmmailboxd
Replies: 26
Views: 11375

Re: Insane cpu usage by zmmailboxd

Here attacched some screenshoot. zmmytop seems to be normal https://up.nexthardware.com/user_images/2577/208/zmmytop.PNG There are a lot of thread from jetty (/opt/zimbra/common/bin/java) which are eating all the CPU resource (I restarted the mailboxd some hours ago during nightime and, actually, I ...
by matteo.fracassetti
Fri Feb 09, 2018 3:09 pm
Forum: Administrators
Topic: Insane cpu usage by zmmailboxd
Replies: 26
Views: 11375

Re: Insane cpu usage by zmmailboxd

Despite the huge CPU usage, server statistics seems to be not useful... $ iostat -x Linux 3.10.0-693.17.1.el7.x86_64 (mailprod01vm.cup2000.priv) 02/09/18 _x86_64_ (6 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 95.29 0.10 0.67 0.36 0.00 3.58 Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-...
by matteo.fracassetti
Fri Feb 09, 2018 11:23 am
Forum: Administrators
Topic: Insane cpu usage by zmmailboxd
Replies: 26
Views: 11375

Re: Insane cpu usage by zmmailboxd

A mix, users are using Web interface and IMAP. Someone (less then 40 users) also uses ActiveSync through Z-Push but this should not be the issues, because CPU usage grows also with the Z-Push server turned off. IMAP NIO is turned ON since a couple of days: I found it was disabled but nothing changes...
by matteo.fracassetti
Thu Feb 08, 2018 4:50 pm
Forum: Administrators
Topic: Insane cpu usage by zmmailboxd
Replies: 26
Views: 11375

Insane cpu usage by zmmailboxd

Zimbra Release 8.7.6_GA_1776.RHEL7_64_20170326144124 RHEL7_64 FOSS edition. CentOS Linux release 7.4.1708 (Core) 2 servers (VMs on ESXi - HP DL380G6). Mailstore on VM with 6vCPU and 16Gb RAM. 650 Users, and more or less 350 always active sessions. Since few months we are facing an huge CPU usage by ...

Go to advanced search