Hi Shelton,   thanks for the reply, actually i am deploying 2M+6D  nodes cluster. is it required to have edge node for this setup ... View more

Hi Shelton, I am waiting for the procedure ... View more

Please send procedure. Thanks  ... View more

Mysql is not starting now check the below error service mysql restart Job for mysql.service failed because the control process exited with error code. See "systemctl status mysql.service" and "journalctl -xe" for details. & after putting port of mysql, WARNING: File /var/lib/ambari-agent/cache/DBConnectionVerification.jar already exists, assuming it was downloaded before WARNING: File /var/lib/ambari-agent/cache/mysql-connector-java.jar already exists, assuming it was downloaded before 2019-10-11 10:26:28,466 - call['/usr/jdk64/jdk1.8.0_112/bin/java -cp /var/lib/ambari-agent/cache/DBConnectionVerification.jar:/var/lib/ambari-agent/cache/mysql-connector-java.jar -Djava.library.path=/var/lib/ambari-agent/cache org.apache.ambari.server.DBConnectionVerification "jdbc:mysql://172.27.3.12: 3306" "hive" [PROTECTED] com.mysql.jdbc.Driver'] {} 2019-10-11 10:26:28,607 - call returned (1, 'ERROR: Unable to connect to the DB. Please check DB connection properties.\ncom.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Cannot load connection class because of underlying exception: \'java.lang.NumberFormatException: For input string: " 3306"\'.') 2019-10-11 10:26:28,608 - DB connection check completed. 2019-10-11 10:26:28,608 - Host checks completed. 2019-10-11 10:26:28,608 - Check db_connection_check was unsuccessful. Exit code: 1. Message: ERROR: Unable to connect to the DB. Please check DB connection properties. com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Cannot load connection class because of underlying exception: 'java.lang.NumberFormatException: For input string: " 3306"'. Command failed after 1 tries   ... View more

cat /etc/ambari-server/conf/ambari.properties | grep mysql custom.mysql.jdbc.name=mysql-connector-java.jar previous.custom.mysql.jdbc.name=mysql-connector-java.jar ... View more

drwxr-x--- 2 mysql mysql 4096 Oct 3 09:28 mysql Permission disk usage is below 5% and inode Below df -i Filesystem Inodes IUsed IFree IUse% Mounted on udev 2045745 426 2045319 1% /dev tmpfs 2053300 957 2052343 1% /run /dev/sda1 6496256 299565 6196691 5% / tmpfs 2053300 7 2053293 1% /dev/shm tmpfs 2053300 5 2053295 1% /run/lock tmpfs 2053300 17 2053283 1% /sys/fs/cgroup tmpfs 2053300 18 2053282 1% /run/user/108 tmpfs 2053300 4 2053296 1% /run/user/0 tmpfs 2053300 4 2053296 1% /run/user/1009 tmpfs 2053300 4 2053296 1% /run/user/1010 tmpfs 2053300 4 2053296 1% /run/user/1006 tmpfs 2053300 4 2053296 1% /run/user/1004 -- myconf file below # # 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 # # * IMPORTANT: Additional settings that can override those from this file! # The files must end with '.cnf', otherwise they'll be ignored. # 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] innodb_force_recovery = 1 # # * 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 = 172.27.3.12 # * Fine Tuning # 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_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 #log_slow_queries = /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   !includedir /etc/mysql/conf.d/ !includedir /etc/mysql/mysql.conf.d/     ... View more

Hi Shelton, I am getting below error in mysql, & please share how to deal with Connection Failure   am not able to start mysql.. below are the error.. Job for mysql.service failed because the control process exited with error code. See "systemctl status mysql.service" and "journalctl -xe" for details. ... View more