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How stable is ElasticSearch service on your forum?

Discussion in 'Enhanced Search Support' started by Vladislav Rastrusny, Jul 16, 2015.

  1. Vladislav Rastrusny

    Vladislav Rastrusny Active Member

    Hello, guys.

    I've heard, that Elastic can be quite unstable when running on a single machine (not in the cluster configuration). What is your experience with? How stable is it on your forum?
  2. Brogan

    Brogan XenForo Moderator Staff Member

    No problems on my server.
  3. Mouth

    Mouth Well-Known Member

    Where did you here that?
    Very stable on my single server.
  4. FredC

    FredC Well-Known Member

    If you're not big on server management it's been a nightmare for me. Mine crashed or whatever it does and I have not been able to figure out how to get it restarted for months.but that has little to do with the server and everything to do with my inabilities.
    51463 likes this.
  5. Xon

    Xon Well-Known Member

    Ensuring you set the maximum memory usage correctly is critical.
    Alfa1 likes this.
  6. JulianD

    JulianD Well-Known Member

    Do you have a swap partition? Crashes might occur due to low memory in the server. A swap file would help but it would slow things down a bit too.
    Xon likes this.
  7. rogerl

    rogerl Member

    Single server here and no stability problems
  8. MattW

    MattW Well-Known Member

    Same here, installed on many single server instances, and no issues at all.
  9. FredC

    FredC Well-Known Member

    Lol my server expertise starts and ends with the fact I know we have one. Anymore then that is beyond my scope. Actually I believe a plugin crashed mysql and took elasticsearch with it. I just disabled xfes in the xf acp to stop the errors and return basic search functions back to the forum.
    51463 likes this.
  10. Karelke

    Karelke Active Member

    Elasticsearch is running on a single machine here without issues.
  11. woody

    woody Active Member

    Nothing but headaches...my sys admin hates it..
  12. Mouth

    Mouth Well-Known Member

    No problems on some servers, problems on others. I think the sysadmin is the deciding factor :)
    eva2000 and Xon like this.
  13. HWS

    HWS Well-Known Member

    There can be problems with Elasticsearch at virtual machines (VPSs). It is crucial that ES really can get all the memory assigned to it. VPSs sometimes cannot provide that.
    Xon and Alfa1 like this.
  14. Alfa1

    Alfa1 Well-Known Member

    Thanks. Thats what I needed to know.
  15. eva2000

    eva2000 Well-Known Member

    yup +1

    so NO problems with ES since I started my XF forum 14+ months ago :)
    zylstra likes this.
  16. HWS

    HWS Well-Known Member

    Elasticsearch needs a professional server environment and a server admin who knows what he does. 2 things are important and it will run without problems for years:
    • Assign the correct amount of memory and take care it is always available for ES.
    • Block any access from outside to the port of ES.
    51463 likes this.
  17. eva2000

    eva2000 Well-Known Member

    you forgot properly monitoring of resource usage Elasticsearch :)
  18. Daniel Hood

    Daniel Hood Well-Known Member

    These stats aren't from a forum but they are on a single server. It has also taken very little in terms of sys admin resources/time.

    We have 3 different indexes on the one server as well:

    Index One (this one gets queried 30x a second)
    Index Two
    Index Three
    In other words, ElasticSearch is very stable (going off what I've experienced).
  19. AndyB

    AndyB Well-Known Member

    It's been working perfectly on my dedicated server.
  20. HWS

    HWS Well-Known Member

    Absolutely stable! No issues since several years.

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