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Thread: zimbra 8.0.1 Open Source on Linode using 1.3GB mem now, further reduce memory use?

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    Question zimbra 8.0.1 Open Source on Linode using 1.3GB mem now, further reduce memory use?

    For the Zimbra 8.0.1 I have running off my personal Linode Ubuntu 12 LTS instance, I have disabled some services to pull to down to a total of 1.3GB used (and eats up half of the 512MB swap). I know there are docs on minimizing memory usage but those were written for previous versions. I wonder if anyone has any updated tweaks/tips on what to set for this particular major release. Use case is just for one very importan power user... me!

    I've disabled:

    * all POP
    * snmp
    * antispam
    * antivirus
    * spellchecker
    * logger

    Can I get it under 1GB? At one point I was about to do this for v6 so that I can cram my Confluence wiki onto the same instance.

    I can spend some time tweaking the changes, but figure I can save some time by asking around. If needed I can puppetize the set of config changes and post them back if anyone would be interested.

    (Hmm I should have posted this into "administration" )

    Thanks.
    Last edited by gettyless; 12-06-2012 at 10:08 AM.

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    Just to be clear, I'm wondering about any updated recommendations or whatever someone has seem work for them on 8.0.1. In the past I've checked these out:

    http://www.zimbra.com/forums/adminis...vironment.html
    Making Zimbra run on minimal RAM - Zimbra :: Wiki

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    Those docs are from Zimbra versions from three versions ago. You may not have much luck getting Zimbra to run on < 2 GB of RAM. I had recently done a test using 8.0.0 with 1.7 GB of RAM, and it wasn't too great.

    There are a lot of new processes (including some additional Java ones, which are memory hungry) in the newer versions that Zimbra requires, and it does require significantly more RAM than it used to.
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    Quote Originally Posted by Krishopper View Post
    Those docs are from Zimbra versions from three versions ago. You may not have much luck getting Zimbra to run on < 2 GB of RAM. I had recently done a test using 8.0.0 with 1.7 GB of RAM, and it wasn't too great.

    There are a lot of new processes (including some additional Java ones, which are memory hungry) in the newer versions that Zimbra requires, and it does require significantly more RAM than it used to.
    What config changes did you try out? Your test case might have been different too - I'm just doing this to support one user. So far what I have seems to settle to this:

    top - 16:14:28 up 8:57, 1 user, load average: 0.09, 0.12, 0.15
    Tasks: 114 total, 1 running, 113 sleeping, 0 stopped, 0 zombie
    Cpu(s): 0.1%us, 0.0%sy, 0.0%ni, 99.9%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
    Mem: 1526544k total, 1235488k used, 291056k free, 17208k buffers
    Swap: 524284k total, 23560k used, 500724k free, 94920k cached

    PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
    4033 zimbra 20 0 2788m 580m 11m S 1 39.0 5:21.15 java
    2538 puppet 20 0 119m 19m 1232 S 0 1.3 1:48.25 puppet
    2870 zimbra 20 0 1907m 249m 14m S 0 16.7 3:03.56 java
    3962 zimbra 20 0 704m 84m 4480 S 0 5.6 0:15.49 mysqld


    Though, just an environment for 1 user. In addition to the unnecessary services (for my case) I tried lowering the mysql memory and the java heap to 256 and that shaved off about 700MB more (based on the old instructions). I'm just going off of what used memory settles down to.

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