如何防止 MySQL 複製中「無法刷新主資訊」?

如何防止 MySQL 複製中「無法刷新主資訊」?

我有兩台 MySQL 5.1 伺服器,設定了主/從複製。我之前使用 5.1.41 好幾年了,沒有出現任何問題。然而,自從我升級到 5.1.72(並進行了一些其他調整,例如啟用 INNODB HA 插件)後,我遇到了從屬 I/O 線程在從屬上死亡的反復出現的問題。這是記錄的訊息:

140506 21:18:33 [ERROR] Failed to flush master info file
140506 21:18:33 [Note] Slave I/O thread exiting, read up to log 'mysql-bin.010913', position 38278270

有誰知道是什麼觸發了 master.info 檔案的刷新?知道為什麼它可能無法沖洗嗎?

我發現 MySQL 的更高版本有sync_master_info 變量,這可能會有所幫助,但我認為 5.1.72 不支援它。

每當這個問題發生時(大約每隔一天一次),我必須連接到從站並發出從站停止命令;從機啟動;並且複製將恢復並記錄以下訊息:

140507  9:46:22 [Note] Error reading relay log event: slave SQL thread was killed
140507  9:46:24 [Note] Slave SQL thread initialized, starting replication in log 'mysql-bin.010913' at position 38278194, relay log '.\SERVERNAME-relay-bin.010971' position: 38278339
140507  9:46:24 [Note] Slave I/O thread: connected to master '[email protected]:3306',replication started in log 'mysql-bin.010913' at position 38278270

下面是我的配置:

[client]
port                               = 3306
default-character-set              = utf8
[mysql]
[mysqld]
ignore-builtin-innodb
plugin-load                        = innodb
 ;innodb_trx                       = ha_innodb_plugin.dll
 ;innodb_locks                     = ha_innodb_plugin.dll
 ;innodb_lock_waits                = ha_innodb_plugin.dll
 ;innodb_cmp                       = ha_innodb_plugin.dll
 ;innodb_cmp_reset                 = ha_innodb_plugin.dll
 ;innodb_cmpmem                    = ha_innodb_plugin.dll
 ;innodb_cmpmem_reset              = ha_innodb_plugin.dll
port                               = 3306
basedir                            = "C:/Program Files/MySQL/MySQL Server 5.1/"
datadir                            = "C:/Documents and Settings/All Users/Application Data/MySQL/MySQL Server 5.1/Data/"
character-set-server               = utf8
default-storage-engine             = INNODB
sql-mode                           = "STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"
max_connections                    = 100
query_cache_size                   = 64M
table_cache                        = 256
tmp_table_size                     = 32M
thread_cache_size                  = 20
myisam_max_sort_file_size          = 100G
myisam_sort_buffer_size            = 35M
key_buffer_size                    = 25M
read_buffer_size                   = 64K
read_rnd_buffer_size               = 256K
sort_buffer_size                   = 256K
collation-server                   =  utf8_general_ci
max_heap_table_size                =  32M
query_cache_type                   =  1
thread_cache_size                  =  20
table_open_cache                   =  350
long_query_time                    = 1
slow_query_log                     = 1
innodb_additional_mem_pool_size    = 2M
innodb_flush_log_at_trx_commit     = 2
innodb_log_buffer_size             = 4M
innodb_buffer_pool_size            = 384M
innodb_log_file_size               = 64M
innodb_thread_concurrency          = 8
default-table-type                 =  INNODB
innodb_file_per_table              =  1
innodb_stats_on_metadata           =  0
innodb_old_blocks_time             =  1000
server-id                          = 2
replicate-do-db                    = mydatabase
relay-log                          = SERVERNAME-relay-bin
tmpdir                             = "C:/Documents and Settings/All Users/Application Data/MySQL/MySQL Server 5.1/tmp/"

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