本文共 12380 字，大约阅读时间需要 41 分钟。
因机房断电, mysql 集群重启后, mysql.galera 无法完成主从同步
故障日志如下
170703 00:44:14 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql170703 00:44:14 mysqld_safe WSREP: Running position recovery with --log_error='/var/lib/mysql/wsrep_recovery.ImJsjZ' --pid-file='/var/lib/mysql/hh-yun-db-129042.-recover.pid'170703 00:44:22 mysqld_safe WSREP: Recovered position 00000000-0000-0000-0000-000000000000:-1170703 0:44:22 [Note] WSREP: wsrep_start_position var submitted: '00000000-0000-0000-0000-000000000000:-1'170703 0:44:22 [Note] WSREP: Read nil XID from storage engines, skipping position init170703 0:44:22 [Note] WSREP: wsrep_load(): loading provider library '/usr/lib64/galera/libgalera_smm.so'170703 0:44:22 [Note] WSREP: wsrep_load(): Galera 3.5(rXXXX) by Codership Oy loaded successfully.170703 0:44:22 [Note] WSREP: CRC-32C: using hardware acceleration.170703 0:44:22 [Warning] WSREP: Could not open saved state file for reading: /var/lib/mysql//grastate.dat170703 0:44:22 [Note] WSREP: Found saved state: 00000000-0000-0000-0000-000000000000:-1170703 0:44:22 [Note] WSREP: Passing config to GCS: base_host = 240.10.129.42; base_port = 4567; cert.log_conflicts = no; debug = no; evs.inactive_check_period = PT0.5S; evs.inactive_timeout = PT15S; evs.join_retrans_period = PT1S; evs.max_install_timeouts = 1; evs.send_window = 4; evs.stats_report_period = PT1M; evs.suspect_timeout = PT5S; evs.user_send_window = 2; evs.view_forget_timeout = PT24H; gcache.dir = /var/lib/mysql/; gcache.keep_pages_size = 0; gcache.mem_size = 0; gcache.name = /var/lib/mysql//galera.cache; gcache.page_size = 128M; gcache.size = 128M; gcs.fc_debug = 0; gcs.fc_factor = 1.0; gcs.fc_limit = 16; gcs.fc_master_slave = no; gcs.max_packet_size = 64500; gcs.max_throttle = 0.25; gcs.recv_q_hard_limit = 9223372036854775807; gcs.recv_q_soft_limit = 0.25; gcs.sync_donor = no; gmcast.segment = 0; gmcast.version = 0; pc.announce_timeout= PT3S; pc.checksum = false; pc.ignore_quorum = false; pc.ignore_sb = false; pc.npvo = false; pc.version = 0; pc.wait_prim = true; pc.wait_prim_timeout = P30S; pc.weight = 1; proton170703 0:44:22 [Note] WSREP: Service thread queue flushed.170703 0:44:22 [Note] WSREP: Assign initial position for certification: -1, protocol version: -1170703 0:44:22 [Note] WSREP: wsrep_sst_grab()170703 0:44:22 [Note] WSREP: Start replication170703 0:44:22 [Note] WSREP: Setting initial position to 00000000-0000-0000-0000-000000000000:-1170703 0:44:22 [Note] WSREP: protonet asio version 0170703 0:44:22 [Note] WSREP: Using CRC-32C (optimized) for message checksums.170703 0:44:22 [Note] WSREP: backend: asio170703 0:44:22 [Note] WSREP: GMCast version 0170703 0:44:22 [Note] WSREP: (b3573054-5f45-11e7-964d-3a604abdf474, 'tcp://0.0.0.0:4567') listening at tcp://0.0.0.0:4567170703 0:44:22 [Note] WSREP: (b3573054-5f45-11e7-964d-3a604abdf474, 'tcp://0.0.0.0:4567') multicast: , ttl: 1170703 0:44:22 [Note] WSREP: EVS version 0170703 0:44:22 [Note] WSREP: PC version 0170703 0:44:22 [Note] WSREP: gcomm: connecting to group 'yun_clutster', peer '240.10.129.41:'170703 0:44:22 [Note] WSREP: declaring 456416f2-5f43-11e7-9f2c-7e2e30ef17dd stable170703 0:44:22 [Note] WSREP: Node 456416f2-5f43-11e7-9f2c-7e2e30ef17dd state prim170703 0:44:22 [Note] WSREP: view(view_id(PRIM,456416f2-5f43-11e7-9f2c-7e2e30ef17dd,2) memb { 456416f2-5f43-11e7-9f2c-7e2e30ef17dd,0 b3573054-5f45-11e7-964d-3a604abdf474,0} joined {} left {} partitioned {})170703 0:44:23 [Note] WSREP: gcomm: connected170703 0:44:23 [Note] WSREP: Changing maximum packet size to 64500, resulting msg size: 32636170703 0:44:23 [Note] WSREP: Shifting CLOSED -> OPEN (TO: 0)170703 0:44:23 [Note] WSREP: Opened channel 'yun_clutster'170703 0:44:23 [Note] WSREP: New COMPONENT: primary = yes, bootstrap = no, my_idx = 1, memb_num = 2170703 0:44:23 [Note] WSREP: Waiting for SST to complete.170703 0:44:23 [Note] WSREP: STATE EXCHANGE: Waiting for state UUID.170703 0:44:23 [Note] WSREP: STATE EXCHANGE: sent state msg: b368f83d-5f45-11e7-b169-2e0622f98c98170703 0:44:23 [Note] WSREP: STATE EXCHANGE: got state msg: b368f83d-5f45-11e7-b169-2e0622f98c98 from 0 (hh-yun-db-129041.)170703 0:44:23 [Note] WSREP: STATE EXCHANGE: got state msg: b368f83d-5f45-11e7-b169-2e0622f98c98 from 1 (hh-yun-db-129042.)170703 0:44:23 [Note] WSREP: Quorum results: version = 3, component = PRIMARY, conf_id = 1, members = 1/2 (joined/total), act_id = 3524, last_appl. = -1, protocols = 0/5/2 (gcs/repl/appl), group UUID = 45649783-5f43-11e7-a935-3e74e94aac23170703 0:44:23 [Note] WSREP: Flow-control interval: [23, 23]170703 0:44:23 [Note] WSREP: Shifting OPEN -> PRIMARY (TO: 3524)170703 0:44:23 [Note] WSREP: State transfer required: Group state: 45649783-5f43-11e7-a935-3e74e94aac23:3524 Local state: 00000000-0000-0000-0000-000000000000:-1170703 0:44:23 [Note] WSREP: New cluster view: global state: 45649783-5f43-11e7-a935-3e74e94aac23:3524, view# 2: Primary, number of nodes: 2, my index: 1, protocol version2170703 0:44:23 [Warning] WSREP: Gap in state sequence. Need state transfer.170703 0:44:25 [Note] WSREP: Running: 'wsrep_sst_rsync --role 'joiner' --address 'xxxx.42' --auth 'xxxxx:xxxxx' --datadir '/var/lib/mysql/' --defaults-file '/etc/my.cnf' --parent '162980''170703 0:44:25 [Note] WSREP: Prepared SST request: rsync|240.10.129.42:4444/rsync_sst170703 0:44:25 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.170703 0:44:25 [Note] WSREP: REPL Protocols: 5 (3, 1)170703 0:44:25 [Note] WSREP: Service thread queue flushed.170703 0:44:25 [Note] WSREP: Assign initial position for certification: 3524, protocol version: 3170703 0:44:25 [Note] WSREP: Service thread queue flushed.170703 0:44:25 [Warning] WSREP: Failed to prepare for incremental state transfer: Local state UUID (00000000-0000-0000-0000-000000000000) does not match group state UUID (45649783-5f43-11e7-a935-3e74e94aac23): 1 (Operation not permitted) at galera/src/replicator_str.cpp:prepare_for_IST():447. IST will be unavailable.170703 0:44:25 [Note] WSREP: Member 1.0 (hh-yun-db-129042.) requested state transfer from '*any*'. Selected 0.0 (hh-yun-db-129041.)(SYNCED) as donor.170703 0:44:25 [Note] WSREP: Shifting PRIMARY -> JOINER (TO: 3524)170703 0:44:25 [Note] WSREP: Requesting state transfer: success, donor: 0170703 0:45:12 [Note] WSREP: 0.0 (hh-yun-db-129041.): State transfer to 1.0 (hh-yun-db-129042.) complete.170703 0:45:12 [Note] WSREP: Member 0.0 (hh-yun-db-129041.) synced with group.WSREP_SST: [INFO] Joiner cleanup. (20170703 00:45:13.006)WSREP_SST: [INFO] Joiner cleanup done. (20170703 00:45:14.276)170703 0:45:14 [Note] WSREP: SST complete, seqno: 3524170703 0:45:14 InnoDB: The InnoDB memory heap is disabled170703 0:45:14 InnoDB: Mutexes and rw_locks use GCC atomic builtins170703 0:45:14 InnoDB: Compressed tables use zlib 1.2.3170703 0:45:14 InnoDB: Using Linux native AIO170703 0:45:14 InnoDB: Initializing buffer pool, size = 16.0G170703 0:45:15 InnoDB: Completed initialization of buffer pool170703 0:45:15 InnoDB: highest supported file format is Barracuda.InnoDB: The log sequence number in ibdata files does not matchInnoDB: the log sequence number in the ib_logfiles!170703 0:45:16 InnoDB: Database was not shut down normally!InnoDB: Starting crash recovery.InnoDB: Reading tablespace information from the .ibd files...InnoDB: Restoring possible half-written data pages from the doublewriteInnoDB: buffer...170703 0:45:16 InnoDB: Waiting for the background threads to start170703 0:45:17 Percona XtraDB (http://www.percona.com) 5.5.36-MariaDB-33.0 started; log sequence number 3781527514170703 0:45:17 [Note] Plugin 'FEEDBACK' is disabled.170703 0:45:17 [Note] Server socket created on IP: '0.0.0.0'.170703 0:45:17 [Note] Event Scheduler: Loaded 0 events170703 0:45:17 [Note] WSREP: Signalling provider to continue.170703 0:45:17 [Note] WSREP: SST received: 45649783-5f43-11e7-a935-3e74e94aac23:3524170703 0:45:17 [Note] WSREP: 1.0 (hh-yun-db-129042.): State transfer from 0.0 (hh-yun-db-129041.) complete.170703 0:45:17 [Note] WSREP: Shifting JOINER -> JOINED (TO: 3524)170703 0:45:17 [Note] WSREP: Member 1.0 (hh-yun-db-129042.) synced with group.170703 0:45:17 [Note] WSREP: Shifting JOINED -> SYNCED (TO: 3524)170703 0:45:17 [Note] WSREP: Synchronized with group, ready for connections170703 0:45:17 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.170703 0:45:17 [Note] /usr/libexec/mysqld: ready for connections.Version: '5.5.36-MariaDB-wsrep' socket: '/var/lib/mysql/mysql.sock' port: 3306 MariaDB Server, wsrep_25.9.r3961170703 1:08:22 [Note] WSREP: Node b3573054-5f45-11e7-964d-3a604abdf474 state prim170703 1:08:22 [Note] WSREP: view(view_id(PRIM,b3573054-5f45-11e7-964d-3a604abdf474,3) memb { b3573054-5f45-11e7-964d-3a604abdf474,0} joined {} left {} partitioned { 456416f2-5f43-11e7-9f2c-7e2e30ef17dd,0})170703 1:08:22 [Note] WSREP: forgetting 456416f2-5f43-11e7-9f2c-7e2e30ef17dd (tcp://240.10.129.41:4567)170703 1:08:22 [Note] WSREP: New COMPONENT: primary = yes, bootstrap = no, my_idx = 0, memb_num = 1170703 1:08:22 [Note] WSREP: STATE_EXCHANGE: sent state UUID: 0d6d078d-5f49-11e7-bba6-bac92eaecf2e170703 1:08:22 [Note] WSREP: STATE EXCHANGE: sent state msg: 0d6d078d-5f49-11e7-bba6-bac92eaecf2e170703 1:08:22 [Note] WSREP: STATE EXCHANGE: got state msg: 0d6d078d-5f49-11e7-bba6-bac92eaecf2e from 0 (hh-yun-db-129042)170703 1:08:22 [Note] WSREP: Quorum results: version = 3, component = PRIMARY, conf_id = 2, members = 1/1 (joined/total), act_id = 69983, last_appl. = 69915, protocols = 0/5/2 (gcs/repl/appl), group UUID = 45649783-5f43-11e7-a935-3e74e94aac23170703 1:08:22 [Note] WSREP: Flow-control interval: [16, 16]170703 1:08:22 [Note] WSREP: New cluster view: global state: 45649783-5f43-11e7-a935-3e74e94aac23:69983, view# 3: Primary, number of nodes: 1, my index: 0, protocol version 2170703 1:08:22 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.170703 1:08:22 [Note] WSREP: REPL Protocols: 5 (3, 1)170703 1:08:22 [Note] WSREP: Service thread queue flushed.170703 1:08:22 [Note] WSREP: Assign initial position for certification: 69983, protocol version: 3170703 1:08:22 [Note] WSREP: Service thread queue flushed.170703 1:08:22 [Warning] WSREP: Releasing seqno 69983 before 69984 was assigned.170703 1:08:27 [Note] WSREP: cleaning up 456416f2-5f43-11e7-9f2c-7e2e30ef17dd (tcp://240.10.129.41:4567)170703 11:29:43 [Note] /usr/libexec/mysqld: Normal shutdown170703 11:29:43 [Note] WSREP: Stop replication170703 11:29:43 [Note] WSREP: Closing send monitor...170703 11:29:43 [Note] WSREP: Closed send monitor.170703 11:29:43 [Note] WSREP: gcomm: terminating thread170703 11:29:43 [Note] WSREP: gcomm: joining thread170703 11:29:43 [Note] WSREP: gcomm: closing backend170703 11:29:43 [Note] WSREP: view((empty))170703 11:29:43 [Note] WSREP: Received self-leave message.170703 11:29:43 [Note] WSREP: gcomm: closed170703 11:29:43 [Note] WSREP: Flow-control interval: [0, 0]170703 11:29:43 [Note] WSREP: Received SELF-LEAVE. Closing connection.170703 11:29:43 [Note] WSREP: Shifting SYNCED -> CLOSED (TO: 69983)170703 11:29:43 [Note] WSREP: RECV thread exiting 0: Success170703 11:29:43 [Note] WSREP: recv_thread() joined.170703 11:29:43 [Note] WSREP: New cluster view: global state: 45649783-5f43-11e7-a935-3e74e94aac23:69983, view# -1: non-Primary, number of nodes: 0, my index: -1, protocol version 2170703 11:29:43 [Note] WSREP: Closing replication queue.170703 11:29:43 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.170703 11:29:43 [Note] WSREP: Closing slave action queue.170703 11:29:43 [Note] WSREP: applier thread exiting (code:0)170703 11:29:43 [Note] WSREP: applier thread exiting (code:6)170703 11:29:43 [Note] WSREP: applier thread exiting (code:6)170703 11:29:43 [Note] WSREP: applier thread exiting (code:6)
故障解决可尝试通过下面两种方法进行
1. 需进行数据同步的事务数量太大, 因此, 需要一个比较大的 innodb_log file, 假如之前的 log file 太小, 是无法正常恢复到集群同步状态2. 在执行集群恢复期间, 需要使用参数 tc-heuristic-recover=ROLLBACK, 对需要恢复的事务执行 ROOLBACK 操作
操作
修改 /etc/my.cnfinnodb-log-file-size = 2048Mtc-heuristic-recover=ROLLBACK
对于日志, 需要执行手动把日志文件删除操作, 在启动服务器时候, MySQL 会自动重新创建响应的日志文件
转载地址：http://chnni.baihongyu.com/