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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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    • A Former User
      A Former User last edited by

      Hi,

      now my mail was offline for for two nights with this bug. As work around I created a script to search for this error and restart kopano-server if this error accoures.

      Download link for this script: https://www.hofstaedtler.com/tmp/check_kopano_mysql.tgz

      1. Extract the .tgz archive in /
      2. Modify the recipients mail address

      Hope this script helps.

      Walter

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

        I’m using the Kopano Contributor Edition.
        Is there a way to get the 8.7.9 version from the download.kopano.io/supported/ download site ?

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        • A Former User
          A Former User last edited by

          xthbx,

          I guess, only with a valid license code.

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          • xthbx
            xthbx last edited by

            i wasnt clear with my post. I got the Kopano Contributor Edition.
            And i found the 8.7.9 tar in the archives.

            Can anybody explain to me how i do the rollback to 8.7.9?
            Do i have to uncomment the repository and then manualy install every package from the 8.7.9 tar?

            Sinux 1 Reply Last reply Reply Quote 0
            • 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)).
                        
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                        • 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.

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                          • 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
                            
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                            • 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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