1. Guest, as per the stickied thread, this forum has not been in use since 2014. All bugs and feature requests should be posted to JIRA.

Crash More crashes, please help :-(

Discussion in 'Bugs & Feature Requests' started by Shivo, Apr 29, 2013.

  1. I'm still having daily crashes and hourly freezes. I have reported in this forum before and have been told, that it probably is the dynmap plugin. I have reported it to the dynmap developer, but he has pointed towards mcjobs :-(

    Removing dynmap plugin reduces the problems (crashes and freezes) but does not eliminate them.

    Here are the lates 4 crash logs (with dynmap debug enabled). Can anyone see any patterns?

    http://pastebin.com/CyWkMWn5 (Note delay between 09:42:05 and 09:43:11)
    http://pastebin.com/wAg3GA7X (Note delay between 13:07:46 and 13:09:30)
    http://pastebin.com/kDUwBBtG (Only 2 very small delays (10 sec) around 02:14:41)
    http://pastebin.com/HdtdbsHL (Note delay between 14:16:38 and 14:18:09)

    Btw: are there any blogposts og wiki articles on how to read spigot crash logs?
     
    • Like Like x 1
  2. I can trace all of these errors back to Dynmap.
     
    • Informative Informative x 1
  3. Conclusively?
    Could you please explain how you do that?
    Could it be traced back to other issues too?

    It seems to me that dynmap is the first choice of a live map component for a broad range og minecraft servers. If the dynmap plugin is causing that kind of problems, that would seem strange. Could it be a combination of dynmap and another one of my plugins (any hints in the log)?

    Can anyone recommend an alternative to dynmap as a live map component?

    Thanks for your time :)
     
    • Agree Agree x 1
  4. You could try using a separate web server for dynmap rather than running it directly on your minecraft server. I notice some people with very fast internet use a massive number of connections when browsing the map.
     
  5. Hmm... Interesting.

    I recently switched to IIS (Window 7) instead of using the plugins builtin web server, but the problem was present before the switch too. The IIS is running on the same server as the minecraft server though.

    In a few days I'll be moving the minecraft server to new hardware. I'll keep the webserver on to 'old' server to see, if it makes a difference.

    Thanks for the idea :)
     
    • Optimistic Optimistic x 1
  6.  
    • Optimistic Optimistic x 1
  7. ??

    You mean Windows 7 is the problem?
     
    • Funny Funny x 1
  8. mikeprimm

    mikeprimm Retired Developer
    Retired

    Nonesense - first one is crash in WorldGuard (line 406 of log), second is deadlock of some sort in MCJobs (line 397 of log), 3rd doesn't really show anything (server thread is busy loading chunks, independent of plugins), 4th one has the server thread doing chunk I/O also (blocked testing for existence of a chunk - probably due to other chunk file I/O being active). Frankly, nothing in those stack traces suggests Dynmap, unless you'd care to illuminate us with some specifics to suggest otherwise.

    I DO suggest you turn off the debug level logging in dynmap - the jline logging is horribly inefficient, and having that much console spam is never a good thing.
     
    • Informative Informative x 1
  9. Bleh, I was thinking DynMap as the thread was spitting errors, and when I saw WorldGuard in there, thought it was causing some hiccups. Nevertheless, informative.
     
    • Funny Funny x 1