server stuck in initializing

Nir Ben-Dor's Avatar

Nir Ben-Dor

15 Nov, 2015 01:30 PM

Server stuck in initializing
tried to follow the wiki debug instructions. No success

Server ID 112c5eb5-7d7d-4081-8633-377748edfa1b

Attaching the log files

Please advise
- Nir

  1. 1 Posted by Nir Ben-Dor on 15 Nov, 2015 01:58 PM

    Nir Ben-Dor's Avatar

    The previous attempt has terminated automatically and a new one (started without my intervention) succeded

    . Took hours of attempts until it succeeded once.

    Did you guys change anything?

    Why has it failed multiple times before it has succeeded?

    Please advise.


  2. Support Staff 2 Posted by Marat Komarov on 15 Nov, 2015 06:01 PM

    Marat Komarov's Avatar

    Initialization stucked on mdadm wait after RAID assemble. The cause of this is a EBS or instance performance.


  3. 3 Posted by Nir Ben-Dor on 15 Nov, 2015 06:51 PM

    Nir Ben-Dor's Avatar


    How can it be avoided in the future?

    - Nir

  4. Support Staff 4 Posted by Marat Komarov on 18 Nov, 2015 09:56 AM

    Marat Komarov's Avatar

    You're using RAID10, which does mirroring and striping. Each disk has IOPS 350 which can give a maximum speed 87.5 MiB/s, while EBS throughput limit is 160MiB/s. So by just increasing IOPS it's possible to get the same performance as with striping. Mirroring doesn't makes a lot of sense, cause AWS does the same on their side.

    So you can switch from RAID to a single EBS with higher IOPS rate.

  5. 5 Posted by Nir Ben-Dor on 18 Nov, 2015 11:34 AM

    Nir Ben-Dor's Avatar

    Thanks Marat

  6. 6 Posted by Nir Ben-Dor on 18 Nov, 2015 09:26 PM

    Nir Ben-Dor's Avatar

    Due to the coming shopping season its hard for me to make this change now
    (switching back to non raid). Is there anything can do to remove the risk
    the servers/volumes wont start with the current config ?
    Was the reason it failed a timeout issue? Is it adjustable?

    Thanks again , Nir

  7. Support Staff 7 Posted by Marat Komarov on 19 Nov, 2015 09:15 AM

    Marat Komarov's Avatar

    You can increase HostUp timeout on Advanced tab of farm role settings.


  8. 8 Posted by Nir Ben-Dor on 19 Nov, 2015 10:54 AM

    Nir Ben-Dor's Avatar

    thanks Marat

    - Nir

  9. Marat Komarov closed this discussion on 07 Dec, 2015 09:10 AM.

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