Exceeded the max requests limit
Results 1 to 4 of 4

Thread: Exceeded the max requests limit

  1. #1
    Active Member
    Join Date
    Dec 2013
    Posts
    4

    Exceeded the max requests limit

    Hi,

    I have a multi server installation, using zimbra 8.0.4 64bit open source edition with zextras and some users complained that some times they
    have the following message while the are trying to login : "Problem accessing ZCS upstream server. Cannot connect to the ZCS upstream server.
    Connection is refused."

    At the same time on the /opt/zimbra/log/mailbox.log file of my back end mailstore server I have messages like the following:

    https://19.29.39.134:443/service/soa...iniCalRequest] [ip=19.29.39.112;ua=Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.57 Safari/537.36;] misc - Exceeded the max requests limit. Suspending org.eclipse.jetty.server.AsyncContinuation@2145v20 f@REDISPATCHED,resumed,expired

    I'm not sure if this is a zextras issue.
    I would appreciate it if you give my some help to understand the source of the issue.

    Thanks in advance,
    Panos

  2. #2
    ZeXtras Community Manager ZeXtras Employee Cine's Avatar
    Join Date
    Apr 2011
    Posts
    2,342
    Hello panos.augerinos!

    This issue is not directly related to ZeXtras Suite, but to the number of concurrent connections opened by the client: raising the maximum number of concurrent client connections should solve it.

    In order to do so, run the following command as the 'zimbra' user and restart the mailboxd service afterwards:
    Code:
    zmlocalconfig -e servlet_max_concurrent_http_requests_per_account=20
    Reaching the limit of concurrent connections per client can be a symptom of a wider issue, which can be caused by:
    - Insufficient resources (CPU, ram, I/O)
    - Database issues
    - Networking issues

    Having additional informations about your infrastructure could give us an idea, while should the issue appear again please run the following command and email the resulting logfile to community@zextras.com, we might be able to help you identifying the cause:

    Code:
    /opt/zimbra/libexec/zmdiaglog -ajz

    Have a nice day,
    Cine
    Last edited by Cine; 12-18-2013 at 09:24 AM.
    IT Support Team Contact Form
    Sales Team Contact Form

    ZeXtras Website
    # ZeXtras Wiki # ZeXtras Store

    Have ZeXtras Suite or ZeXtras Migration Tool been helpful to you?
    Share your experience in the Zimbra Gallery!

    ZeXtras Suite on the Zimbra Gallery
    ZeXtras Migration Tool on the Zimbra Gallery

  3. #3
    Active Member
    Join Date
    Dec 2013
    Posts
    4
    Hi Cine,

    Thanks for the update.

    We are going to change the servlet_max_concurrent_http_requests_per_account value on our mailstore servers.

    Regards,
    Panos.

  4. #4
    ZeXtras Customer
    Join Date
    Aug 2013
    Posts
    7
    Quote Originally Posted by Cine View Post
    This issue is not directly related to ZeXtras Suite, but to the number of concurrent connections opened by the client: raising the maximum number of concurrent client connections should solve it.
    Hi Cine, we have had the same problem on our installation (~ 3000 users splitted on 4 mailstores, 2 proxy servers), solved temporarily by disabling the chat module.
    We'd like to re-enable it, should we also change the servlet_max_concurrent_http_requests_per_account? Have you ever had such reportings?
    We've found (simply by reading in realtime the mailbox.log) that the chat zimlet does _a lot_ of request to the mailboxes.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •