從master使用 Percona xtrabackup 創建的備份恢復從屬

在主 binlog 上設置為在 14 天后過期，並且此備份不到 24 小時

my.cnf（主）

expire_logs_days   = 14

恢復腳本（從屬）

service mysql stop

rm -r /var/lib/mysql/*

# backup is unzipped into /var/lib/mysql
xtrabackup --prepare --target-dir=/var/lib/mysql
chown -R mysql.mysql /var/lib/mysql

service mysql start

# get gtid
line=$(head -n 1 "/var/lib/mysql/xtrabackup_binlog_info")
gtid=$(echo $line | awk -F '[ ,]' '{print $3}')

mysql -u root -pPASS -e "reset master; SET GLOBAL gtid_purged='$gtid'; CHANGE MASTER TO MASTER_HOST='$master_host', MASTER_USER='repl', MASTER_PASSWORD='$master_pass', MASTER_AUTO_POSITION=1; start slave"

mysql -u root -pPASS -e "show slave status\G;"

地位

*************************** 1. row ***************************
              Slave_IO_State:
                 Master_Host: server.com
                 Master_User: repl
                 Master_Port: 3306
               Connect_Retry: 60
             Master_Log_File:
         Read_Master_Log_Pos: 4
              Relay_Log_File: rep-relay-bin.000001
               Relay_Log_Pos: 4
       Relay_Master_Log_File:
            Slave_IO_Running: No
           Slave_SQL_Running: Yes
             Replicate_Do_DB: mydb
         Replicate_Ignore_DB:
          Replicate_Do_Table:
      Replicate_Ignore_Table:
     Replicate_Wild_Do_Table:
 Replicate_Wild_Ignore_Table:
                  Last_Errno: 0
                  Last_Error:
                Skip_Counter: 0
         Exec_Master_Log_Pos: 0
             Relay_Log_Space: 154
             Until_Condition: None
              Until_Log_File:
               Until_Log_Pos: 0
          Master_SSL_Allowed: No
          Master_SSL_CA_File:
          Master_SSL_CA_Path:
             Master_SSL_Cert:
           Master_SSL_Cipher:
              Master_SSL_Key:
       Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
               Last_IO_Errno: 1236
               Last_IO_Error: Got fatal error 1236 from master when reading data from binary log: 'The slave is connecting using CHANGE MASTER TO MASTER_AUTO_POSITION = 1, but the master has purged binary logs containing GTIDs that the slave requires. Replicate the missing transactions from elsewhere, or provision a new slave from backup. Consider increasing the master's binary log expiration period. The GTID sets and the missing purged transactions are too long to print in this message. For more information, please see the master's error log or the manual for GTID_SUBTRACT.'
              Last_SQL_Errno: 0
              Last_SQL_Error:
 Replicate_Ignore_Server_Ids:
            Master_Server_Id: 1
                 Master_UUID: fe51e8df-b7c4-11e9-be21-4061862b8d34
            Master_Info_File: /mnt/HC_Volume_8355755/mysql/master.info
                   SQL_Delay: 0
         SQL_Remaining_Delay: NULL
     Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
          Master_Retry_Count: 86400
                 Master_Bind:
     Last_IO_Error_Timestamp: 210211 10:50:32
    Last_SQL_Error_Timestamp:
              Master_SSL_Crl:
          Master_SSL_Crlpath:
          Retrieved_Gtid_Set:
           Executed_Gtid_Set: 3ccc2392-45ed-11e7-bc98-4061862b8d34:1-35942477,
94bb04d3-6c4e-11eb-8631-96000080ccbb:1-2
               Auto_Position: 1
        Replicate_Rewrite_DB:
                Channel_Name:
          Master_TLS_Version:

/var/lib/mysql/xtrabackup_binlog_info

mysql-bin.000025    217141189   3ccc2392-45ed-11e7-bc98-4061862b8d34:1-35942477,
fe51e8df-b7c4-11e9-be21-4061862b8d34:1-25059775

gtid從文件中提取的值：3ccc2392-45ed-11e7-bc98-4061862b8d34:1-35942477

更新

還嘗試/var/lib/mysql/xtrabackup_binlog_info通過執行來獲取第二個 uid

gtid=$(tail -n 1 "$mysql_dir/xtrabackup_binlog_info")

沒有任何效果..同樣的錯誤

更新 2

show master status在主返回

3ccc2392-45ed-11e7-bc98-4061862b8d34:1-35942477,
fe51e8df-b7c4-11e9-be21-4061862b8d34:1-25203198

我在這裡找到了解決方案 https://www.percona.com/doc/percona-xtrabackup/2.3/howtos/setting_up_replication.html

我錯過了xtrabackup --move-back命令

引用自：https://serverfault.com/questions/1055916