2014-12-28 5 views
0

Я уверен, что для этого есть простое решение, но, простите меня, я новичок в PXC. Я использую rsync для передачи состояния узла начальной загрузки в node2. node2 - это узел, к которому я присоединяюсь к кластеру. Сначала я попробовал Xtrabackup, но столкнулся с проблемами, которые я буду исследовать в другой раз. На данный момент я использую rsync для того, что, как я думал, будет простотой. Если вы прокрутите страницу до [ОШИБКА], вы увидите, какие проблемы приводят к прерыванию передачи состояния. Что может быть причиной этого?Percona XtraDB Cluster SST не работает с использованием rsync: wsrep_sst_rsync

*WSREP_SST: **[ERROR]** find/rsync returned code 123: (20141228 02:24:40.505) 
2014-12-28 02:24:40 9446 **[ERROR]** WSREP: Failed to read from: **wsrep_sst_rsync** --role 'donor' --address '192.168.70.2:4444/rsync_sst' --auth 'sst:sst' --socket*  

2014-12-28 02:24:24 9446 [Note] WSREP: (2861d1d7, 'tcp://0.0.0.0:4567') turning message relay requesting on, nonlive peers: 
2014-12-28 02:24:24 9446 [Note] WSREP: declaring 41f79045 at tcp://192.168.70.2:4567 stable 
2014-12-28 02:24:24 9446 [Note] WSREP: Node 2861d1d7 state prim 
2014-12-28 02:24:24 9446 [Note] WSREP: save pc into disk 
2014-12-28 02:24:24 9446 [Note] WSREP: New COMPONENT: primary = yes, bootstrap = no, my_idx = 0, memb_num = 2 
2014-12-28 02:24:24 9446 [Note] WSREP: STATE_EXCHANGE: sent state UUID: 42495aba-8e30-11e4-9596-c702faf22ad0 
2014-12-28 02:24:24 9446 [Note] WSREP: STATE EXCHANGE: sent state msg: 42495aba-8e30-11e4-9596-c702faf22ad0 
2014-12-28 02:24:24 9446 [Note] WSREP: STATE EXCHANGE: got state msg: 42495aba-8e30-11e4-9596-c702faf22ad0 from 0 (node3) 
2014-12-28 02:24:24 9446 [Note] WSREP: STATE EXCHANGE: got state msg: 42495aba-8e30-11e4-9596-c702faf22ad0 from 1 (node2) 
2014-12-28 02:24:24 9446 [Note] WSREP: Quorum results: 
    version = 3, 
    component = PRIMARY, 
    conf_id = 1, 
    members = 1/2 (joined/total), 
    act_id  = 0, 
    last_appl. = 0, 
    protocols = 0/6/3 (gcs/repl/appl), 
    group UUID = 48ec9889-8ddc-11e4-9efd-da6610fd24da 
2014-12-28 02:24:24 9446 [Note] WSREP: Flow-control interval: [23, 23] 
2014-12-28 02:24:24 9446 [Note] WSREP: New cluster view: global state: 48ec9889-8ddc-11e4-9efd-da6610fd24da:0, view# 2: Primary, number of nodes: 2, my index: 0, protocol version 3 
2014-12-28 02:24:24 9446 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification. 
2014-12-28 02:24:24 9446 [Note] WSREP: REPL Protocols: 6 (3, 2) 
2014-12-28 02:24:24 9446 [Note] WSREP: Service thread queue flushed. 
2014-12-28 02:24:24 9446 [Note] WSREP: Assign initial position for certification: 0, protocol version: 3 
2014-12-28 02:24:24 9446 [Note] WSREP: Service thread queue flushed. 
2014-12-28 02:24:25 9446 [Note] WSREP: Member 1.0 (node2) requested state transfer from '*any*'. Selected 0.0 (node3)(SYNCED) as donor. 
2014-12-28 02:24:25 9446 [Note] WSREP: Shifting SYNCED -> DONOR/DESYNCED (TO: 0) 
2014-12-28 02:24:25 9446 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification. 
2014-12-28 02:24:25 9446 [Note] WSREP: Running: 'wsrep_sst_rsync --role 'donor' --address '192.168.70.2:4444/rsync_sst' --auth 'sst:sst' --socket '/var/lib/mysql/mysql.sock' --datadir '/var/lib/mysql/' --defaults-file '/etc/my.cnf' --binlog 'mysql-bin' --gtid '48ec9889-8ddc-11e4-9efd-da6610fd24da:0'' 
2014-12-28 02:24:25 9446 [Note] WSREP: sst_donor_thread signaled with 0 
2014-12-28 02:24:25 9446 [Note] WSREP: Flushing tables for SST... 
2014-12-28 02:24:25 9446 [Note] WSREP: Provider paused at 48ec9889-8ddc-11e4-9efd-da6610fd24da:0 (5) 
2014-12-28 02:24:25 9446 [Note] WSREP: Tables flushed. 
WSREP_SST: [INFO] Preparing binlog files for transfer: (20141228 02:24:26.201) 
mysql-bin.000015 
2014-12-28 02:24:27 9446 [Note] WSREP: (2861d1d7, 'tcp://0.0.0.0:4567') turning message relay requesting off 
rsync: send_files failed to open "/var/lib/mysql/sbtest/sbtest1.ibd": Permission denied (13) 
rsync: send_files failed to open "/var/lib/mysql/sbtest/sbtest2.ibd": Permission denied (13) 
rsync: send_files failed to open "/var/lib/mysql/sbtest/sbtest3.ibd": Permission denied (13) 
rsync: send_files failed to open "/var/lib/mysql/sbtest/sbtest4.ibd": Permission denied (13) 
rsync: send_files failed to open "/var/lib/mysql/sbtest/sbtest5.ibd": Permission denied (13) 
rsync: send_files failed to open "/var/lib/mysql/sbtest/sbtest6.ibd": Permission denied (13) 
rsync: send_files failed to open "/var/lib/mysql/sbtest/sbtest7.ibd": Permission denied (13) 
rsync: send_files failed to open "/var/lib/mysql/sbtest/sbtest8.ibd": Permission denied (13) 
rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1039) [sender=3.0.6] 
rsync: send_files failed to open "/var/lib/mysql/mysql/innodb_index_stats.ibd": Permission denied (13) 
rsync: send_files failed to open "/var/lib/mysql/mysql/innodb_table_stats.ibd": Permission denied (13) 
rsync: send_files failed to open "/var/lib/mysql/mysql/slave_master_info.ibd": Permission denied (13) 
rsync: send_files failed to open "/var/lib/mysql/mysql/slave_relay_log_info.ibd": Permission denied (13) 
rsync: send_files failed to open "/var/lib/mysql/mysql/slave_worker_info.ibd": Permission denied (13) 
rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1039) [sender=3.0.6] 
WSREP_SST: **[ERROR]** find/rsync returned code 123: (20141228 02:24:40.505) 
2014-12-28 02:24:40 9446 **[ERROR]** WSREP: Failed to read from: **wsrep_sst_rsync** --role 'donor' --address '192.168.70.2:4444/rsync_sst' --auth 'sst:sst' --socket '/var/lib/mysql/mysql.sock' --datadir '/var/lib/mysql/' --defaults-file '/etc/my.cnf' --binlog 'mysql-bin' --gtid '48ec9889-8ddc-11e4-9efd-da6610fd24da:0' 
2014-12-28 02:24:40 9446 **[ERROR]** WSREP: Process completed with error: wsrep_sst_rsync --role 'donor' --address '192.168.70.2:4444/rsync_sst' --auth 'sst:sst' --socket '/var/lib/mysql/mysql.sock' --datadir '/var/lib/mysql/' --defaults-file '/etc/my.cnf' --binlog 'mysql-bin' --gtid '48ec9889-8ddc-11e4-9efd-da6610fd24da:0': 255 (Unknown error 255) 
2014-12-28 02:24:40 9446 [Note] WSREP: resuming provider at 5 
2014-12-28 02:24:40 9446 [Note] WSREP: Provider resumed. 
2014-12-28 02:24:40 9446 **[ERROR]** WSREP: Command did not run: wsrep_sst_rsync --role 'donor' --address '192.168.70.2:4444/rsync_sst' --auth 'sst:sst' --socket '/var/lib/mysql/mysql.sock' --datadir '/var/lib/mysql/' --defaults-file '/etc/my.cnf' --binlog 'mysql-bin' --gtid '48ec9889-8ddc-11e4-9efd-da6610fd24da:0' 
2014-12-28 02:24:40 9446 [Warning] WSREP: 0.0 (node3): State transfer to 1.0 (node2) failed: -255 (Unknown error 255) 
2014-12-28 02:24:40 9446 [Note] WSREP: Shifting DONOR/DESYNCED -> JOINED (TO: 0) 
2014-12-28 02:24:40 9446 [Note] WSREP: Member 0.0 (node3) synced with group. 
2014-12-28 02:24:40 9446 [Note] WSREP: Shifting JOINED -> SYNCED (TO: 0) 
2014-12-28 02:24:40 9446 [Note] WSREP: Synchronized with group, ready for connections 
2014-12-28 02:24:40 9446 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification. 
2014-12-28 02:24:41 9446 [Note] WSREP: forgetting 41f79045 (tcp://192.168.70.2:4567) 
2014-12-28 02:24:41 9446 [Note] WSREP: Node 2861d1d7 state prim 
2014-12-28 02:24:41 9446 [Note] WSREP: save pc into disk 
2014-12-28 02:24:41 9446 [Note] WSREP: New COMPONENT: primary = yes, bootstrap = no, my_idx = 0, memb_num = 1 
2014-12-28 02:24:41 9446 [Note] WSREP: forgetting 41f79045 (tcp://192.168.70.2:4567) 
2014-12-28 02:24:41 9446 [Note] WSREP: STATE_EXCHANGE: sent state UUID: 4c2e3544-8e30-11e4-a0dc-d280b597b8d2 
2014-12-28 02:24:41 9446 [Note] WSREP: STATE EXCHANGE: sent state msg: 4c2e3544-8e30-11e4-a0dc-d280b597b8d2 
2014-12-28 02:24:41 9446 [Note] WSREP: STATE EXCHANGE: got state msg: 4c2e3544-8e30-11e4-a0dc-d280b597b8d2 from 0 (node3) 
2014-12-28 02:24:41 9446 [Note] WSREP: Quorum results: 
    version = 3, 
    component = PRIMARY, 
    conf_id = 2, 
    members = 1/1 (joined/total), 
    act_id  = 0, 
    last_appl. = 0, 
    protocols = 0/6/3 (gcs/repl/appl), 
    group UUID = 48ec9889-8ddc-11e4-9efd-da6610fd24da 
2014-12-28 02:24:41 9446 [Note] WSREP: Flow-control interval: [16, 16] 
2014-12-28 02:24:41 9446 [Note] WSREP: New cluster view: global state: 48ec9889-8ddc-11e4-9efd-da6610fd24da:0, view# 3: Primary, number of nodes: 1, my index: 0, protocol version 3 
2014-12-28 02:24:41 9446 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification. 
2014-12-28 02:24:41 9446 [Note] WSREP: REPL Protocols: 6 (3, 2) 
2014-12-28 02:24:41 9446 [Note] WSREP: Service thread queue flushed. 
2014-12-28 02:24:41 9446 [Note] WSREP: Assign initial position for certification: 0, protocol version: 3 
2014-12-28 02:24:41 9446 [Note] WSREP: Service thread queue flushed. 
2014-12-28 02:24:46 9446 [Note] WSREP: cleaning up 41f79045 (tcp://192.168.70.2:4567) 

ответ

0

Что-то не так с разрешениями DataDirectory, как вы можете видеть из следующих ошибок:

rsync: send_files failed to open "/var/lib/mysql/sbtest/sbtest7.ibd": Permission denied (13) 

Вещи, которые я хотел бы проверить:

  • ли все файлы данных в каталоге/вар/lib/mysql, принадлежащий пользователю mysql?
  • у вас есть SELinux или AppArmor работает? (Возможно, он неконфигурирован).

Обратите внимание: DONOR с использованием метода rsync SST блокирует чтение/запись, пока это DONOR. Это может привести к простою. Предлагаю посмотреть в Percona XtraBackup (вопросы, которые у вас могут быть похожими)

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