I keep seeing permission denied errors in the log.
You didn't run the chown command recursively
Please do this
chown -R mysql:mysql ./path/to/rh-mysql56
I also see errors like
2016-06-30 14:14:48 9138 [ERROR] InnoDB: Tablespace open failed for '"mysql"."innodb_index_stats"', ignored.
When you installed mysql before, it created 5 InnoDB system tables (See my answers Cannot open table mysql/innodb_index_stats and InnoDB: Error: Table "mysql"."innodb_table_stats" not found after upgrade to mysql 5.6).
You need to recreate them.
First you need to delete the orphaned .frm files
cd ./path/to/rh-mysql56/mysql
rm -f innodb_index_stats.frm
rm -f innodb_table_stats.frm
rm -f slave_master_info.frm
rm -f slave_relay_log_info.frm
rm -f slave_worker_info.frm
rm -f innodb_index_stats.ibd
rm -f innodb_table_stats.ibd
rm -f slave_master_info.ibd
rm -f slave_relay_log_info.ibd
rm -f slave_worker_info.ibd
Then, you can recreate them with
USE mysql
CREATE TABLE `innodb_index_stats` (
`database_name` varchar(64) COLLATE utf8_bin NOT NULL,
`table_name` varchar(64) COLLATE utf8_bin NOT NULL,
`index_name` varchar(64) COLLATE utf8_bin NOT NULL,
`last_update` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`stat_name` varchar(64) COLLATE utf8_bin NOT NULL,
`stat_value` bigint(20) unsigned NOT NULL,
`sample_size` bigint(20) unsigned DEFAULT NULL,
`stat_description` varchar(1024) COLLATE utf8_bin NOT NULL,
PRIMARY KEY (`database_name`,`table_name`,`index_name`,`stat_name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin STATS_PERSISTENT=0;
CREATE TABLE `innodb_table_stats` (
`database_name` varchar(64) COLLATE utf8_bin NOT NULL,
`table_name` varchar(64) COLLATE utf8_bin NOT NULL,
`last_update` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`n_rows` bigint(20) unsigned NOT NULL,
`clustered_index_size` bigint(20) unsigned NOT NULL,
`sum_of_other_index_sizes` bigint(20) unsigned NOT NULL,
PRIMARY KEY (`database_name`,`table_name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin STATS_PERSISTENT=0;
CREATE TABLE `slave_master_info` (
`Number_of_lines` int(10) unsigned NOT NULL COMMENT 'Number of lines in the file.',
`Master_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'The name of the master binary log currently being read from the master.',
`Master_log_pos` bigint(20) unsigned NOT NULL COMMENT 'The master log position of the last read event.',
`Host` char(64) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '' COMMENT 'The host name of the master.',
`User_name` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The user name used to connect to the master.',
`User_password` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The password used to connect to the master.',
`Port` int(10) unsigned NOT NULL COMMENT 'The network port used to connect to the master.',
`Connect_retry` int(10) unsigned NOT NULL COMMENT 'The period (in seconds) that the slave will wait before trying to reconnect to the master.',
`Enabled_ssl` tinyint(1) NOT NULL COMMENT 'Indicates whether the server supports SSL connections.',
`Ssl_ca` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The file used for the Certificate Authority (CA) certificate.',
`Ssl_capath` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The path to the Certificate Authority (CA) certificates.',
`Ssl_cert` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The name of the SSL certificate file.',
`Ssl_cipher` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The name of the cipher in use for the SSL connection.',
`Ssl_key` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The name of the SSL key file.',
`Ssl_verify_server_cert` tinyint(1) NOT NULL COMMENT 'Whether to verify the server certificate.',
`Heartbeat` float NOT NULL,
`Bind` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'Displays which interface is employed when connecting to the MySQL server',
`Ignored_server_ids` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The number of server IDs to be ignored, followed by the actual server IDs',
`Uuid` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The master server uuid.',
`Retry_count` bigint(20) unsigned NOT NULL COMMENT 'Number of reconnect attempts, to the master, before giving up.',
`Ssl_crl` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The file used for the Certificate Revocation List (CRL)',
`Ssl_crlpath` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The path used for Certificate Revocation List (CRL) files',
`Enabled_auto_position` tinyint(1) NOT NULL COMMENT 'Indicates whether GTIDs will be used to retrieve events from the master.',
PRIMARY KEY (`Host`,`Port`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 STATS_PERSISTENT=0 COMMENT='Master Information';
CREATE TABLE `slave_relay_log_info` (
`Number_of_lines` int(10) unsigned NOT NULL COMMENT 'Number of lines in the file or rows in the table. Used to version table definitions.',
`Relay_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'The name of the current relay log file.',
`Relay_log_pos` bigint(20) unsigned NOT NULL COMMENT 'The relay log position of the last executed event.',
`Master_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'The name of the master binary log file from which the events in the relay log file were read.',
`Master_log_pos` bigint(20) unsigned NOT NULL COMMENT 'The master log position of the last executed event.',
`Sql_delay` int(11) NOT NULL COMMENT 'The number of seconds that the slave must lag behind the master.',
`Number_of_workers` int(10) unsigned NOT NULL,
`Id` int(10) unsigned NOT NULL COMMENT 'Internal Id that uniquely identifies this record.',
PRIMARY KEY (`Id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 STATS_PERSISTENT=0 COMMENT='Relay Log Information';
CREATE TABLE `slave_worker_info` (
`Id` int(10) unsigned NOT NULL,
`Relay_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
`Relay_log_pos` bigint(20) unsigned NOT NULL,
`Master_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
`Master_log_pos` bigint(20) unsigned NOT NULL,
`Checkpoint_relay_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
`Checkpoint_relay_log_pos` bigint(20) unsigned NOT NULL,
`Checkpoint_master_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
`Checkpoint_master_log_pos` bigint(20) unsigned NOT NULL,
`Checkpoint_seqno` int(10) unsigned NOT NULL,
`Checkpoint_group_size` int(10) unsigned NOT NULL,
`Checkpoint_group_bitmap` blob NOT NULL,
PRIMARY KEY (`Id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 STATS_PERSISTENT=0 COMMENT='Worker Information';
Best Answer
Check the
.errlog file which will often be in yourdatadirwhich in your case appears to be/var/lib/mysql/, although sometimes the error log is under/var/log/. The error log file should hopefully have some good clues as to why the MariaDB server won't start up.You can also have a look in your MariaDB config file which appears to be
/etc/my.cnfand see if there's alog_errorentry that defines a different location for the file.See also the MariaDB documentation for the Error Log.
Your installation procedure may or may not have created a password for the root account. With most Linux distros I've encountered it doesn't create one. A password will in any case only be used when connecting over TCP. If you're logged in on the actual server, you can instead connect over the Unix socket with the Linux root user without a password. You can specify the socket file if you you know where it is and you want to be sure it's using the correct one, e.g.
mysql -S /tmp/mysql.sock. Obviously, this won't work until you have successfully started the MariaDB server.See also the MariaDB documentation on the Authentication Plugin - Unix Socket.