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    Statement regarding the closure of the Kopano community forum and the end of the community edition

    Problems after upgrade KC 8.7.9 to 8.7.12

    Kopano Groupware Core
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    • Sinux
      Sinux @xthbx last edited by

      I have the kopano version myself but not the problem because my server is not always on but are there any news?

      1 Reply Last reply Reply Quote 0
      • fbartels
        fbartels Kopano last edited by

        Hi @xthbx, @Sinux.

        8.7.13 is now available in the pre-final download directory. Your feedback would be appreciated.

        See https://forum.kopano.io/topic/3215/kopano-core-8-7-13-pre-final for more information.

        Regards Felix

        Resources:
        https://kopano.com/blog/how-to-get-kopano/
        https://documentation.kopano.io/
        https://kb.kopano.io/

        Support overview:
        https://kopano.com/support/

        xthbx 2 Replies Last reply Reply Quote 0
        • xthbx
          xthbx @fbartels last edited by xthbx

          @fbartels thanks

          i gave it a try and keep you updated

          Update after 1 day since upgrade 8.7.13: still no problems. Looks great

          1 Reply Last reply Reply Quote 0
          • xthbx
            xthbx @fbartels last edited by xthbx

            @fbartels i’m sorry but the Problem is still there. It just happened again.

            ==> /var/log/kopano/server.log <==
            Wed May 27 16:00:33 2020: [error  ] mysql_real_connect: Can't create a new thread (errno 11); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug
            Wed May 27 16:00:33 2020: [error  ] Unable to get database connection: MYSQL not initialized
            Wed May 27 16:00:33 2020: [error  ] ECSearchFolders::Search() GetStore failed: disk error (80000007)
            Wed May 27 16:00:40 2020: [error  ] mysql_real_connect: Can't create a new thread (errno 11); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug
            Wed May 27 16:00:40 2020: [error  ] Unable to get database connection: MYSQL not initialized
            Wed May 27 16:00:40 2020: [error  ] ECSearchFolders::Search() GetStore failed: disk error (80000007)
            Wed May 27 16:00:45 2020: [error  ] mysql_real_connect: Can't create a new thread (errno 11); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug
            Wed May 27 16:00:45 2020: [error  ] Unable to get database connection: MYSQL not initialized
            Wed May 27 16:00:45 2020: [error  ] ECSearchFolders::Search() GetStore failed: disk error (80000007)
            Wed May 27 16:01:00 2020: [error  ] mysql_real_connect: Can't create a new thread (errno 11); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug
            
            1 Reply Last reply Reply Quote 0
            • jengelh
              jengelh Banned last edited by

              ER_CANT_CREATE_THREAD  
              ...
                      eng "Can't create a new thread (errno %M); if you are not out of available memory, you can consult the manual for a pos>
              

              –>

              ## sql/mysqld.cc:void create_thread_to_handle_connection(CONNECT *connect)
              
                /* Create new thread to handle connection */
                inc_thread_created();
                DBUG_PRINT("info",(("creating thread %lu"), (ulong) connect->thread_id));
                connect->prior_thr_create_utime= microsecond_interval_timer();
              
                if ((error= mysql_thread_create(key_thread_one_connection,
                                                &connect->real_id, &connection_attrib,
                                                handle_one_connection, (void*) connect)))
                {
                  /* purecov: begin inspected */
                  DBUG_PRINT("error", ("Can't create thread to handle request (error %d)",
                              error));
                  my_snprintf(error_message_buff, sizeof(error_message_buff),
                              ER_DEFAULT(ER_CANT_CREATE_THREAD), error);
                  connect->close_with_error(ER_CANT_CREATE_THREAD, error_message_buff,
                                            ER_OUT_OF_RESOURCES);
                  DBUG_VOID_RETURN;
                  /* purecov: end */
                }
              

              –>

              #ifdef HAVE_PSI_THREAD_INTERFACE
                #define mysql_thread_create(K, P1, P2, P3, P4) \
                  inline_mysql_thread_create(K, P1, P2, P3, P4)
              #else
                #define mysql_thread_create(K, P1, P2, P3, P4) \
                  pthread_create(P1, P2, P3, P4)
              #endif
              

              So no check for connection limit exceeded (at this point), this is directly the result of pthread_create. If pthread_create fails, then you are running into some ulimit of your mysqld/system. Without further analysis of the Linux installation, I at this time conclude the fault is with your mysqld process, or the ulimits and cgroups that it has been configured with.

              1 Reply Last reply Reply Quote 0
              • jengelh
                jengelh Banned last edited by

                /usr/include/asm-generic/errno-base.h:#define   EAGAIN          11      /* Try again */
                
                man pthread_create:
                
                       EAGAIN Insufficient resources to create another thread.
                
                       EAGAIN A system-imposed limit on the number of threads was encountered.  There are a number of limits that may  trig-
                              ger  this  error: the RLIMIT_NPROC soft resource limit (set via setrlimit(2)), which limits the number of pro-
                              cesses and threads for a real user ID, was reached; the kernel's system-wide limit on the number of  processes
                              and  threads,  /proc/sys/kernel/threads-max,  was  reached  (see  proc(5));  or  the  maximum  number of PIDs,
                              /proc/sys/kernel/pid_max, was reached (see proc(5)).
                
                1 Reply Last reply Reply Quote 0
                • xthbx
                  xthbx last edited by

                  hmm strange the server worked fine for months with KC 8.7.9. I guess i have to keep looking. And i’m not a Linux pro so i dont really know where to look next.

                  1 Reply Last reply Reply Quote 0
                  • xthbx
                    xthbx last edited by xthbx

                    mysql> show processlist;
                    +----+--------+-----------+--------+---------+-------+----------+------------------+
                    | Id | User   | Host      | db     | Command | Time  | State    | Info             |
                    +----+--------+-----------+--------+---------+-------+----------+------------------+
                    |  6 | kopano | localhost | kopano | Sleep   |    89 |          | NULL             |
                    |  7 | kopano | localhost | kopano | Sleep   |    15 |          | NULL             |
                    |  8 | kopano | localhost | kopano | Sleep   |     5 |          | NULL             |
                    |  9 | kopano | localhost | kopano | Sleep   |    10 |          | NULL             |
                    | 10 | kopano | localhost | kopano | Sleep   |    10 |          | NULL             |
                    | 11 | kopano | localhost | kopano | Sleep   |    35 |          | NULL             |
                    | 12 | kopano | localhost | kopano | Sleep   |     5 |          | NULL             |
                    | 13 | kopano | localhost | kopano | Sleep   |    15 |          | NULL             |
                    | 16 | kopano | localhost | kopano | Sleep   |  1761 |          | NULL             |
                    | 55 | kopano | localhost | kopano | Sleep   | 28726 |          | NULL             |
                    | 56 | kopano | localhost | kopano | Sleep   | 28666 |          | NULL             |
                    | 57 | kopano | localhost | kopano | Sleep   | 25905 |          | NULL             |
                    | 58 | kopano | localhost | kopano | Sleep   | 25124 |          | NULL             |
                    | 59 | kopano | localhost | kopano | Sleep   | 25064 |          | NULL             |
                    | 62 | kopano | localhost | kopano | Sleep   |    25 |          | NULL             |
                    | 63 | kopano | localhost | kopano | Sleep   | 22307 |          | NULL             |
                    | 64 | kopano | localhost | kopano | Sleep   | 21527 |          | NULL             |
                    | 65 | kopano | localhost | kopano | Sleep   | 21467 |          | NULL             |
                    | 66 | kopano | localhost | kopano | Sleep   | 18704 |          | NULL             |
                    | 67 | kopano | localhost | kopano | Sleep   | 17923 |          | NULL             |
                    | 68 | kopano | localhost | kopano | Sleep   | 17863 |          | NULL             |
                    | 76 | kopano | localhost | kopano | Sleep   | 15106 |          | NULL             |
                    | 77 | kopano | localhost | kopano | Sleep   | 14326 |          | NULL             |
                    | 78 | kopano | localhost | kopano | Sleep   | 14266 |          | NULL             |
                    | 81 | kopano | localhost | kopano | Sleep   |  4307 |          | NULL             |
                    | 82 | kopano | localhost | kopano | Sleep   |  3527 |          | NULL             |
                    | 83 | kopano | localhost | kopano | Sleep   |  3467 |          | NULL             |
                    | 98 | kopano | localhost | kopano | Sleep   |   704 |          | NULL             |
                    | 99 | root   | localhost | NULL   | Query   |     0 | starting | show processlist |
                    +----+--------+-----------+--------+---------+-------+----------+------------------+
                    29 rows in set (0.00 sec)
                    

                    is it a normal behavior that with every new search in webapp a new process is generated and not reset ?

                    here is my mysqld.cnf:

                    #
                    # The MySQL database server configuration file.
                    #
                    # You can copy this to one of:
                    # - "/etc/mysql/my.cnf" to set global options,
                    # - "~/.my.cnf" to set user-specific options.
                    #
                    # One can use all long options that the program supports.
                    # Run program with --help to get a list of available options and with
                    # --print-defaults to see which it would actually understand and use.
                    #
                    # For explanations see
                    # http://dev.mysql.com/doc/mysql/en/server-system-variables.html
                    
                    # This will be passed to all mysql clients
                    # It has been reported that passwords should be enclosed with ticks/quotes
                    # escpecially if they contain "#" chars...
                    # Remember to edit /etc/mysql/debian.cnf when changing the socket location.
                    
                    # Here is entries for some specific programs
                    # The following values assume you have at least 32M ram
                    
                    [mysqld_safe]
                    socket          = /var/run/mysqld/mysqld.sock
                    nice            = 0
                    
                    [mysqld]
                    #
                    # * Basic Settings
                    #
                    user            = mysql
                    pid-file        = /var/run/mysqld/mysqld.pid
                    socket          = /var/run/mysqld/mysqld.sock
                    port            = 3306
                    basedir         = /usr
                    datadir         = /var/lib/mysql
                    tmpdir          = /tmp
                    lc-messages-dir = /usr/share/mysql
                    skip-external-locking
                    #
                    # Instead of skip-networking the default is now to listen only on
                    # localhost which is more compatible and is not less secure.
                    bind-address            = 127.0.0.1
                    #
                    # * Fine Tuning
                    #
                    ##KopanoDB
                    innodb_buffer_pool_size = 768M
                    innodb_log_file_size = 192M
                    innodb_log_buffer_size = 48M
                    max_connections = 500
                    innodb_file_per_table
                    ##KopanoDB
                    key_buffer_size         = 16M
                    max_allowed_packet      = 16M
                    thread_stack            = 192K
                    thread_cache_size       = 8
                    # This replaces the startup script and checks MyISAM tables if needed
                    # the first time they are touched
                    myisam-recover-options  = BACKUP
                    #max_connections        = 100
                    #table_open_cache       = 64
                    #thread_concurrency     = 10
                    #
                    # * Query Cache Configuration
                    #
                    query_cache_limit       = 1M
                    query_cache_size        = 16M
                    #
                    # * Logging and Replication
                    #
                    # Both location gets rotated by the cronjob.
                    # Be aware that this log type is a performance killer.
                    # As of 5.1 you can enable the log at runtime!
                    #general_log_file        = /var/log/mysql/mysql.log
                    #general_log             = 1
                    #
                    # Error log - should be very few entries.
                    #
                    log_error = /var/log/mysql/error.log
                    #
                    # Here you can see queries with especially long duration
                    #slow_query_log         = 1
                    #slow_query_log_file    = /var/log/mysql/mysql-slow.log
                    #slow_query_log         = 1
                    #slow_query_log_file    = /var/log/mysql/mysql-slow.log
                    #long_query_time = 2
                    #log-queries-not-using-indexes
                    #
                    # The following can be used as easy to replay backup logs or for replication.
                    # note: if you are setting up a replication slave, see README.Debian about
                    #       other settings you may need to change.
                    #server-id              = 1
                    #log_bin                        = /var/log/mysql/mysql-bin.log
                    expire_logs_days        = 10
                    max_binlog_size   = 100M
                    #binlog_do_db           = include_database_name
                    #binlog_ignore_db       = include_database_name
                    #
                    # * InnoDB
                    #
                    # InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/.
                    # Read the manual for more InnoDB related options. There are many!
                    #
                    # * Security Features
                    #
                    # Read the manual, too, if you want chroot!
                    # chroot = /var/lib/mysql/
                    #
                    # For generating SSL certificates I recommend the OpenSSL GUI "tinyca".
                    #
                    # ssl-ca=/etc/mysql/cacert.pem
                    # ssl-cert=/etc/mysql/server-cert.pem
                    # ssl-key=/etc/mysql/server-key.pem
                    
                    root@xxx:/home/xxx# free -m
                                  total        used        free      shared  buff/cache   available
                    Mem:           4096        2167        1576          10         352        1917
                    Swap:             0           0           0
                    
                    1 Reply Last reply Reply Quote 0
                    • xthbx
                      xthbx last edited by xthbx

                      @fbartels i just installed 8.7.14 (pre-final) and keep you updated…

                      1 Reply Last reply Reply Quote 1
                      • xthbx
                        xthbx last edited by

                        so far it looks better:

                        mysql> show processlist;
                        +-----+--------+-----------+--------+---------+------+----------+------------------+
                        | Id  | User   | Host      | db     | Command | Time | State    | Info             |
                        +-----+--------+-----------+--------+---------+------+----------+------------------+
                        |   6 | kopano | localhost | kopano | Sleep   |  111 |          | NULL             |
                        |   7 | kopano | localhost | kopano | Sleep   |    9 |          | NULL             |
                        |   8 | kopano | localhost | kopano | Sleep   |   29 |          | NULL             |
                        |   9 | kopano | localhost | kopano | Sleep   |   19 |          | NULL             |
                        |  10 | kopano | localhost | kopano | Sleep   |   34 |          | NULL             |
                        |  11 | kopano | localhost | kopano | Sleep   |    4 |          | NULL             |
                        |  12 | kopano | localhost | kopano | Sleep   |   29 |          | NULL             |
                        |  13 | kopano | localhost | kopano | Sleep   |    9 |          | NULL             |
                        |  14 | kopano | localhost | kopano | Sleep   |    4 |          | NULL             |
                        |  16 | kopano | localhost | kopano | Sleep   |  218 |          | NULL             |
                        | 110 | root   | localhost | NULL   | Query   |    0 | starting | show processlist |
                        +-----+--------+-----------+--------+---------+------+----------+------------------+
                        11 rows in set (0.00 sec)
                        
                        xthbx 1 Reply Last reply Reply Quote 0
                        • xthbx
                          xthbx @xthbx last edited by

                          @fbartels it looks great. No problem since installation. Still only 11 connections.

                          fbartels 1 Reply Last reply Reply Quote 1
                          • fbartels
                            fbartels Kopano @xthbx last edited by

                            @xthbx thanks for you feedback

                            Regards Felix

                            Resources:
                            https://kopano.com/blog/how-to-get-kopano/
                            https://documentation.kopano.io/
                            https://kb.kopano.io/

                            Support overview:
                            https://kopano.com/support/

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