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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

      I see a similar error. Kopano investigates in this issue.

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

        as a workaround i stopped kopano-search.

        So far the rest of the server is running.

        Update: it only slows down the time during the errors

        1 Reply Last reply Reply Quote 0
        • 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.

              1 Reply Last reply Reply Quote 0
              • 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)).
                            
                            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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