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Thread: High cpu loading by java zmailboxd process

  1. #1
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    Default High cpu loading by java zmailboxd process

    Hi, there:

    The following java process, it has a 100% cpu usage, I read a post about 7.1.2 version, with the same issue, but replys are unsatisfactory, apparently these bug persist in the new 8 release, any help will be appreciated, thanks a lot.

    zimbra 15497 96.1 33.5 4751188 2355052 ? S+ 18:32 10:18 /opt/zimbra/java/bin/java -Dfile.encoding=UTF-8 -server -Djava.awt.headless=true -Dsun.net.inetaddr.ttl=60 -XX:+UseConcMarkSweepGC -XX:PermSize=128m -XX:MaxPermSize=350m -XX:SoftRefLRUPolicyMSPerMB=1 -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCApplicationStoppedTime -XX:-OmitStackTraceInFastThrow -Djava.net.preferIPv4Stack=true -Xss256k -Xms1715m -Xmx1715m -Xmn428m -Djava.io.tmpdir=/opt/zimbra/mailboxd/work -Djava.library.path=/opt/zimbra/lib -Djava.endorsed.dirs=/opt/zimbra/mailboxd/common/endorsed -Dzimbra.config=/opt/zimbra/conf/localconfig.xml -Djetty.home=/opt/zimbra/mailboxd -DSTART=/opt/zimbra/mailboxd/etc/start.config -jar /opt/zimbra/mailboxd/start.jar OPTIONS=Server,jsp,jmx,resources,websocket,ext,jta ,plus,rewrite,setuid /opt/zimbra/mailboxd/etc/jetty.properties /opt/zimbra/mailboxd/etc/jetty-setuid.xml /opt/zimbra/mailboxd/etc/jetty.xml.


    Release 8.0.2_GA_5569.RHEL6_64_20121210115059 CentOS6_64 FOSS edition.

  2. #2
    Join Date
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    Default

    Same Here!

    Is there anybody to help arround. The server was running smooth enough just b4 7 days. I have 500 mailboxes with zextras mobile module. Have 150 Imap clients configured in Blackberry and outlook. Rest of the users are using Webmail. Storege is SAS with 6GB fible channel currently storage occupied 700GB of mailbox data. 20% of the user's mailbox is over 20GB, dont' know if this matters for zimbra server performance. Please show me a way to get a solution


    Configuration is below:
    Release 8.0.4_GA_5737.RHEL6_64_20130524120036 RHEL6_64 FOSS edition. (24 GB of RAM, XEON processor)
    mailboxd_java_heap_memory_percent = 20
    mailboxd_java_heap_size = 4800
    mailboxd_java_heap_new_size_percent = 25
    zimbra_require_interprocess_security = 0
    data_source_max_message_memory_size = 2097152
    mysql_memory_percent = 30 set to my.config as well
    zmdbintegrityreport_disabled=TRUE
    zimbra_require_interprocess_security=0
    mailboxd_java_options = -server -Djava.awt.headless=true -Dsun.net.inetaddr.ttl=60 -XX:+UseConcMarkSweepGC -XX:PermSize=196m -XX:MaxPermSize=350m -XX:SoftRefLRUPolicyMSPerMB=1 -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCApplicationStoppedTime -XX:-OmitStackTraceInFastThrow -Djava.net.preferIPv4Stack=true -Dorg.apache.jasper.compiler.disablejsr199=true



    zmmailbox.out is showing below bold after certain period. and could not understand "Total time for which application threads were stopped: 0.0189820 seconds ".

    Total time for which application threads were stopped: 0.0014490 seconds
    Total time for which application threads were stopped: 0.0010430 seconds
    20068.463: [GC 20068.463: [ParNew: 1025890K->22837K(1105920K), 0.0174660 secs] 3334748K->2331695K(4792320K), 0.0176960 secs] [Times: user=0.18 sys=0.00, real=0.02 secs]
    Total time for which application threads were stopped: 0.0189820 seconds


    TOP is showing 113.1% CPU using for below process.
    4969 zimbra 20 0 13.7g 5.3g 16m S 9.7 22.5 76:27.17 java ------> cannot understand RAM uses 13.7G whereas configured to use 20%
    4896 zimbra 20 0 10.0g 2.2g 7192 S 1.9 9.4 33:49.89 mysqld
    26102 zimbra 20 0 2145m 151m 13m S 113.1 0.6 0:03.41 /opt/zimbra/java/bin/java -client -Xmx256m -Djava.net.preferIP


    Below GC found when server stops working....
    (concurrent mode failure): 3686399K->3686392K(3686400K), 2.4519310 secs] 4792314K->4790989K(4792320K), [CMS Perm : 117590K->117590K(200704K)], 2.4521250 secs] [Times: user=3.13 sys=0.00, real=2.45 secs]
    Total time for which application threads were stopped: 2.4537300 seconds
    Total time for which application threads were stopped: 0.0022870 seconds
    Total time for which application threads were stopped: 0.0014910 seconds
    1699.865: [GC [1 CMS-initial-mark: 3686392K(3686400K)] 4791601K(4792320K), 0.1172630 secs] [Times: user=0.12 sys=0.00, real=0.12 secs]
    Total time for which application threads were stopped: 0.1183360 seconds
    1699.983: [CMS-concurrent-mark-start]
    1699.989: [Full GC 1699.989: [CMS1700.259: [CMS-concurrent-mark: 0.272/0.276 secs] [Times: user=1.12 sys=0.00, real=0.28 secs]
    (concurrent mode failure): 3686392K->3686399K(3686400K), 2.4567990 secs] 4792299K->4791042K(4792320K), [CMS Perm : 117590K->117590K(200704K)], 2.4569580 secs] [Times: user=3.26 sys=0.00, real=2.45 secs]
    Total time for which application threads were stopped: 2.4584280 seconds
    1702.452: [Full GC 1702.452: [CMS: 3686399K->3686399K(3686400K), 2.1841300 secs] 4792318K->4790783K(4792320K), [CMS Perm : 117592K->117592K(200704K)], 2.1842880 secs] [Times: user=2.19 sys=0.00, real=2.18 secs]
    Total time for which application threads were stopped: 2.1862400 seconds
    1704.639: [GC [1 CMS-initial-mark: 3686399K(3686400K)] 4790888K(4792320K), 0.1137160 secs] [Times: user=0.12 sys=0.00, real=0.11 secs]
    Total time for which application threads were stopped: 0.1158880 seconds
    1704.754: [CMS-concurrent-mark-start]
    1704.761: [Full GC 1704.761: [CMS1705.004: [CMS-concurrent-mark: 0.246/0.250
    Last edited by rimon; 07-14-2013 at 09:51 AM. Reason: found some error GC

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