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  • David Veksler 81 posts 166 karma points
    Nov 04, 2016 @ 17:46
    David Veksler
    0

    Umbraco takes over 30 min to start up

    Our Umbraco runs in an auto-scaling cloud in AWS. When load goes up, or if there is a problem with one of the nodes, a new one spins up.

    This works well - except that each Umbraco instance takes over 30 minutes to start up. With such long response times, auto scaling does not really work.

    Here's what the log file looks like:

    2016-11-04 13:05:38,138 [P1096/D2/T1] INFO  Umbraco.Core.CoreBootManager - Umbraco 7.5.4 application starting on WEB1
...
2016-11-04 13:06:03,825 [P1096/D2/T1] INFO  Umbraco.Core.DatabaseContext - CanConnect = True
 2016-11-04 13:34:27,351 [P1096/D2/T1] INFO  Umbraco.Core.DatabaseContext - CanConnect = True
...
2016-11-04 13:36:03,585 [P1096/D2/T30] INFO  umbraco.content - Save Xml to file...

    You can see that there is a 30 minute gap between the two "DatabaseContext - CanConnect = True" entries. What's that about? How can I speed it up? The servers have 8 cores and 30GB ram.

    I have the same issue on my Intel i5 16GB desktop. How can I speed up startup?

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  • Dave Woestenborghs 3504 posts 12135 karma points MVP 9x admin c-trib
    Nov 05, 2016 @ 09:28
    Dave Woestenborghs
    0

    Hi David,

    We have seen similar issues on Azure using Auto scaling. In our case it was building examine indexes for the new instance being the issue.

    Dave

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  • Darren Ferguson 1022 posts 3259 karma points MVP c-trib
    Nov 05, 2016 @ 17:09
    Darren Ferguson
    100

    +1 for what Dave says - Try boot with Examine index rebuilding disabled by setting RebuildOnAppStart to False

    e.g.

    See: https://our.umbraco.org/documentation/reference/config/examinesettings/

    If you use Examine and this does turn out to be the issue - then you'll need a strategy to share indexes across instances.

    How much content do you have out of interest?

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  • David Veksler 81 posts 166 karma points
    Nov 21, 2016 @ 16:05
    David Veksler
    0

    How much content do you have out of interest?

    40,000 documents, 2.2GB.

    Looks like RebuildOnAppStart worked, and content is still replicating.

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  • Darren Ferguson 1022 posts 3259 karma points MVP c-trib
    Nov 22, 2016 @ 08:42
    Darren Ferguson
    0

    Hi David,

    What is the startup time like now?

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  • David Veksler 81 posts 166 karma points
    Nov 22, 2016 @ 18:45
    David Veksler
    0

    About two minutes.

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