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Site Offline again

Last post 07-17-2009 2:56 PM by skozyuk. 2 replies.
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  • 06-27-2009 7:17 AM

    • petecee
    • Top 10 Contributor
    • Joined on 10-30-2007
    • Durham, UK
    • Posts 57
    • Points 457

    Site Offline again

    Anybody else on CLE02WEB01 offline Again ? Really becoming a major problem to me the number of times this has been down now. Each time when it's down HELM shows the directory is empty, presumably because the server is offline.

     

    • Post Points: 16
  • 06-27-2009 10:56 AM In reply to

    • vinod
    • Top 100 Contributor
    • Joined on 06-27-2009
    • Posts 1
    • Points 16

    Re: Site Offline again

    We also faced similar problem , none of the sites realted to Ihost support and our hosted sites were available close to 1Hr ( from 12:00 AM EST) , finally when they came the sites on  on CLE02WEB04 and CLE02WEB02 where crashing, it seemed to be related connection to database.  But as per Ihost staff  their servers have not logged any outages, and told that it might have been routing issue.

    • Post Points: 16
  • 07-17-2009 2:56 PM In reply to

    • skozyuk
    • Top 10 Contributor
    • Joined on 10-28-2007
    • Westlake, OH
    • Posts 329
    • Points 1,082

    Re: Site Offline again

    Truth is there is always something going on. With over 50 shared IIS web servers across two datacenters we are always troubleshooting something. Due to the dynamic nature of shared hosting environment, and the sheer number of the domains and applications we host,  it is impossible and impractical for us to monitor each individual domain. We can tell if the server or service is operational as a whole, however not an individual domain. At any given time one user can monopolize on entire server CPU and disk IO resource pool by executing buggy code and effectively knock out others. We may see this event as a CPU spike and investigate further, but on 5 minute avg. sample sensor short duration I/O spikes often resolve before we get to them. On the other hand serious conditions like degraded RAID array, we may opt to bring server offline in order to expedite the rebuild time or minimize the possibility of data loss.

      This may be evident more so to the customers that host large number of domains with us distributed over many different servers. It may appear somewhat similar to “whack-a-mole” game.

     

    • Post Points: 1
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