TokuDB 热备测试

1、启动后尝试安装TokuDB插件

[root@es3 mysql]# export PATH=$PATH:/usr/local/mysql/bin[root@es3 mysql]# ps_tokudb_admin  -h227.0.0.1 --enableChecking SELinux status...INFO: SELinux is disabled.Checking location of jemalloc library ...INFO: Using jemalloc library from /usr/lib64/libjemalloc.so.1Checking transparent huge pages status on the system...INFO: Transparent huge pages are enabled (should be disabled).Checking if THP_SETTING variable is set to never or madvise in /etc/sysconfig/mysql...INFO: Variable THP_SETTING is not set to never or madvise in /etc/sysconfig/mysql.Checking if LD_PRELOAD variable is set for libjemalloc.so.1 in /etc/sysconfig/mysql...INFO: Variable LD_PRELOAD for libjemalloc.so.1 is set in /etc/sysconfig/mysql.Checking TokuDB engine plugin status...INFO: TokuDB engine plugin is not installed.Disabling transparent huge pages for the current session...INFO: Successfully disabled transparent huge pages for this session.Adding THP_SETTING=never variable into /etc/sysconfig/mysqlINFO: Successfully added THP_SETTING=never option into /etc/sysconfig/mysqlInstalling TokuDB engine...2019-08-27T08:51:36.877238Z 5 [ERROR] TokuDB is not initialized because jemalloc is not loaded2019-08-27T08:51:36.877264Z 5 [ERROR] Plugin 'TokuDB' init function returned error.2019-08-27T08:51:36.877279Z 5 [ERROR] Plugin 'TokuDB' registration as a STORAGE ENGINE failed.2019-08-27T08:51:36.877307Z 5 [Note] Shutting down plugin 'TokuDB'ERROR: Failed to install TokuDB engine plugin. Please check error log.

2、添加jemalloc 后

[root@es3 lib]# sh /usr/local/mysql/support-files/mysql.server start                                                                                 [root@es3 support-files]# ps_tokudb_admin  -h227.0.0.1 --enableChecking SELinux status...INFO: SELinux is disabled.Checking if Percona Server is running with jemalloc enabled...INFO: Percona Server is running with jemalloc enabled.Checking transparent huge pages status on the system...INFO: Transparent huge pages are currently disabled on the system.Checking if thp-setting=never option is already set in config file...INFO: Option thp-setting=never is not set in the config file.      (needed only if THP is not disabled permanently on the system)Checking TokuDB engine plugin status...INFO: TokuDB engine plugin is not installed.Adding thp-setting=never option into /etc/my.cnfINFO: Successfully added thp-setting=never option into /etc/my.cnfInstalling TokuDB engine...INFO: Successfully installed TokuDB engine plugin.

3、安装热备插件

[root@es3 support-files]# ps_tokudb_admin  -h227.0.0.1 --enable-backupChecking SELinux status...INFO: SELinux is disabled.Checking if Percona Server is running with jemalloc enabled...INFO: Percona Server is running with jemalloc enabled.Checking transparent huge pages status on the system...INFO: Transparent huge pages are currently disabled on the system.Checking if thp-setting=never option is already set in config file...INFO: Option thp-setting=never is set in the config file.Checking if preload-hotbackup option is already set in config file...INFO: Option preload-hotbackup is not set in the config file.Checking TokuDB engine plugin status...INFO: TokuDB engine plugin is installed.Checking TokuBackup plugin status...INFO: TokuBackup plugin is not installed.Adding preload-hotbackup option into /etc/my.cnfINFO: Successfully added preload-hotbackup option into /etc/my.cnfPLEASE RESTART MYSQL SERVICE AND RUN THIS SCRIPT AGAIN TO FINISH INSTALLATION!

4、启动查看tokudb相关信息，尝试备份，并配置关闭异步IO

innodb_use_native_aio =0

5、重新运行一遍， --enable-backup（PLEASE RESTART MYSQL SERVICE AND RUN THIS SCRIPT AGAIN TO FINISH INSTALLATION!）

[root@es3 lib]# sh /usr/local/mysql/support-files/mysql.server restartShutting down MySQL (Percona Server)... SUCCESS! Starting MySQL (Percona Server).. SUCCESS! [root@es3 lib]#  mkdir -p /data/backup/[root@es3 lib]#  chown mysql.mysql -R /data/backup/[root@es3 lib]# mysql -h227.0.0.1Welcome to the MySQL monitor.  Commands end with ; or \g.Your MySQL connection id is 3Server version: 5.7.17-13 Percona Server (GPL), Release 13, Revision fd33d43Copyright (c) 2009-2016 Percona LLC and/or its affiliatesCopyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.mysql>  set tokudb_backup_dir='/data/backup/';mysql> exitBye[root@es3 lib]# ps_tokudb_admin  -h227.0.0.1 --enable-backupChecking SELinux status...INFO: SELinux is disabled.Checking if Percona Server is running with jemalloc enabled...INFO: Percona Server is running with jemalloc enabled.Checking transparent huge pages status on the system...INFO: Transparent huge pages are currently disabled on the system.Checking if thp-setting=never option is already set in config file...INFO: Option thp-setting=never is set in the config file.Checking if preload-hotbackup option is already set in config file...INFO: Option preload-hotbackup is set in the config file.Checking TokuDB engine plugin status...INFO: TokuDB engine plugin is installed.Checking TokuBackup plugin status...INFO: TokuBackup plugin is not installed.Checking if Percona Server is running with libHotBackup.so preloaded...INFO: Percona Server is running with libHotBackup.so preloaded.Installing TokuBackup plugin...INFO: Successfully installed TokuBackup plugin.

6、执行备份，并观察

[root@es3 lib]# mysql -h227.0.0.1                              Welcome to the MySQL monitor.  Commands end with ; or \g.Your MySQL connection id is 7Server version: 5.7.17-13 Percona Server (GPL), Release 13, Revision fd33d43Copyright (c) 2009-2016 Percona LLC and/or its affiliatesCopyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.mysql>  set tokudb_backup_dir='/data/backup/';Query OK, 0 rows affected (13.16 sec)mysql> exitBye[root@es3 lib]# cd /data/backup/[root@es3 backup]# ll总用量 4drwxr-x--- 6 mysql mysql 4096 8月  27 17:56 mysql_data_dir[root@es3 backup]# cd mysql_data_dir/[root@es3 mysql_data_dir]# ll总用量 126896-rwxr-x--x 1 mysql mysql       56 8月  27 17:56 auto.cnf-rwxr-x--x 1 mysql mysql     1676 8月  27 17:56 ca-key.pem-rwxr-x--x 1 mysql mysql     1083 8月  27 17:56 ca.pem-rwxr-x--x 1 mysql mysql     1087 8月  27 17:56 client-cert.pem-rwxr-x--x 1 mysql mysql     1680 8月  27 17:56 client-key.pem-rwxr-x--x 1 mysql mysql        5 8月  27 17:56 es3.pid-rwxr-x--x 1 mysql mysql      292 8月  27 17:56 ib_buffer_pool-rwxr-x--x 1 mysql mysql 12582912 8月  27 17:57 ibdata1-rwxr-x--x 1 mysql mysql 50331648 8月  27 17:56 ib_logfile0-rwxr-x--x 1 mysql mysql 50331648 8月  27 17:57 ib_logfile1-rwxr-x--x 1 mysql mysql 12582912 8月  27 17:56 ibtmp1-rwxr-x--x 1 mysql mysql     2908 8月  27 17:56 log000000000003.tokulog29-rwxr-x--x 1 mysql mysql    23625 8月  27 17:56 mariadb.logdrwxr-x--x 2 mysql mysql     4096 8月  27 17:56 mysql-rwxr-x--x 1 mysql mysql        5 8月  27 17:56 mysql.sock.lockdrwxr-x--x 2 mysql mysql     8192 8月  27 17:56 performance_schema-rwxr-x--x 1 mysql mysql     1680 8月  27 17:56 private_key.pem-rwxr-x--x 1 mysql mysql      452 8月  27 17:56 public_key.pem-rwxr-x--x 1 mysql mysql     1087 8月  27 17:56 server-cert.pem-rwxr-x--x 1 mysql mysql     1676 8月  27 17:56 server-key.pemdrwxr-x--x 2 mysql mysql     8192 8月  27 17:56 sys-rwxr-x--x 1 mysql mysql    24576 8月  27 17:56 tc.logdrwxr-x--x 2 mysql mysql       60 8月  27 17:56 tktest-rwxr-x--x 1 mysql mysql    16384 8月  27 17:56 tokudb.directory-rwxr-x--x 1 mysql mysql    16384 8月  27 17:56 tokudb.environment-rwxr-x--x 1 mysql mysql        0 8月  27 17:56 __tokudb_lock_dont_delete_me_data-rwxr-x--x 1 mysql mysql        0 8月  27 17:56 __tokudb_lock_dont_delete_me_environment-rwxr-x--x 1 mysql mysql        0 8月  27 17:56 __tokudb_lock_dont_delete_me_logs-rwxr-x--x 1 mysql mysql        0 8月  27 17:56 __tokudb_lock_dont_delete_me_recovery-rwxr-x--x 1 mysql mysql        0 8月  27 17:56 __tokudb_lock_dont_delete_me_temp-rwxr-x--x 1 mysql mysql    16384 8月  27 17:56 tokudb.rollback-rwxr-x--x 1 mysql mysql  3932160 8月  27 17:56 xb_doublewrite