我试图用 3 个节点设置 PXC，第一个节点已成功引导，但在尝试启动第二个节点时它无法获得 SST。来自第二个节点的日志文件：
2020-10-07T13:17:16.480905Z 0 [Note] [MY-000000] [WSREP] Initiating SST/IST transfer on JOINER side (wsrep_sst_xtrabackup-v2 --role 'joiner' --address 'xxx.xxx.xxx.xxx:4444' --datadir '/var/lib/mysql/' --basedir '/usr/' --plugindir '/usr/lib/mysql/plugin/' --defaults-file '/etc/mysql/my.cnf' --defaults-group-suffix '' --parent '154359' --mysqld-version '8.0.20-11.1' --binlog 'mysql-bin' )
2020-10-07T13:17:17.203042Z 0 [Warning] [MY-000000] [WSREP-SST] Found a stale sst_in_progress file: /var/lib/mysql//sst_in_progress
2020-10-07T13:17:17.642030Z 1 [Note] [MY-000000] [WSREP] Prepared SST request: xtrabackup-v2|xxx.xxx.xxx.xxx:4444/xtrabackup_sst//1
2020-10-07T13:17:17.642609Z 1 [Note] [MY-000000] [Galera] Cert index reset to 00000000-0000-0000-0000-000000000000:-1 (proto: 10), state transfer needed: yes
2020-10-07T13:17:17.643130Z 0 [Note] [MY-000000] [Galera] Service thread queue flushed.
2020-10-07T13:17:17.643718Z 1 [Note] [MY-000000] [Galera] ####### Assign initial position for certification: 00000000-0000-0000-0000-000000000000:-1, protocol version: 5
2020-10-07T13:17:17.644031Z 1 [Note] [MY-000000] [Galera] Check if state gap can be serviced using IST
2020-10-07T13:17:17.644344Z 1 [Note] [MY-000000] [Galera] Local UUID: 00000000-0000-0000-0000-000000000000 != Group UUID: 613f9455-07f0-11eb-9e01-139f2b6b4973
2020-10-07T13:17:17.644667Z 1 [Note] [MY-000000] [Galera] ####### IST uuid:00000000-0000-0000-0000-000000000000 f: 0, l: 57, STRv: 3
2020-10-07T13:17:17.645190Z 1 [Note] [MY-000000] [Galera] IST receiver addr using ssl://xxx.xxx.xxx.xxx:4568
2020-10-07T13:17:17.645589Z 1 [Note] [MY-000000] [Galera] IST receiver using ssl
2020-10-07T13:17:17.646458Z 1 [Note] [MY-000000] [Galera] Prepared IST receiver for 0-57, listening at: ssl://xxx.xxx.xxx.xxx:4568
2020-10-07T13:17:17.647629Z 0 [Warning] [MY-000000] [Galera] Member 1.0 (engine2) requested state transfer from 'engine3', but it is impossible to select State Transfer donor: Resource temporarily unavailable
2020-10-07T13:17:17.648009Z 1 [Note] [MY-000000] [Galera] Requesting state transfer failed: -11(Resource temporarily unavailable). Will keep retrying every 1 second(s)
2020-10-07T13:17:18.651866Z 0 [Warning] [MY-000000] [Galera] Member 1.0 (engine2) requested state transfer from 'engine3', but it is impossible to select State Transfer donor: Resource temporarily unavailable
2020-10-07T13:17:18.969089Z 0 [Note] [MY-000000] [Galera] (6b19a1b7, 'ssl://0.0.0.0:4567') turning message relay requesting off
2020-10-07T13:17:19.654067Z 0 [Warning] [MY-000000] [Galera] Member 1.0 (engine2) requested state transfer from 'engine3', but it is impossible to select State Transfer donor: Resource temporarily unavailable
2020-10-07T13:18:57.356706Z 0 [Note] [MY-000000] [WSREP-SST] pigz: skipping: <stdin> empty
2020-10-07T13:18:57.360327Z 0 [ERROR] [MY-000000] [WSREP-SST] ******************* FATAL ERROR **********************
2020-10-07T13:18:57.363359Z 0 [ERROR] [MY-000000] [WSREP-SST] Possible timeout in receving first data from donor in gtid/keyring stage
2020-10-07T13:18:57.363393Z 0 [ERROR] [MY-000000] [WSREP-SST] Line 1108
2020-10-07T13:18:57.363412Z 0 [ERROR] [MY-000000] [WSREP-SST] ******************************************************
2020-10-07T13:18:57.363430Z 0 [ERROR] [MY-000000] [WSREP-SST] Cleanup after exit with status:32
2020-10-07T13:18:57.384013Z 0 [ERROR] [MY-000000] [WSREP] Process completed with error: wsrep_sst_xtrabackup-v2 --role 'joiner' --address 'xxx.xxx.xxx.xxx:4444' --datadir '/var/lib/mysql/' --basedir '/usr/' --plugindir '/usr/lib/mysql/plugin/' --defaults-file '/etc/mysql/my.cnf' --defaults-group-suffix '' --parent '154359' --mysqld-version '8.0.20-11.1' --binlog 'mysql-bin' : 32 (Broken pipe)
2020-10-07T13:18:57.384488Z 0 [ERROR] [MY-000000] [WSREP] Failed to read uuid:seqno from joiner script.
2020-10-07T13:18:57.384541Z 0 [ERROR] [MY-000000] [WSREP] SST script aborted with error 32 (Broken pipe)
2020-10-07T13:18:57.385257Z 3 [Note] [MY-000000] [Galera] Processing SST received
2020-10-07T13:18:57.385338Z 3 [Note] [MY-000000] [Galera] SST request was cancelled
2020-10-07T13:18:57.385387Z 3 [ERROR] [MY-000000] [Galera] State transfer request failed unrecoverably: 32 (Broken pipe). Most likely it is due to inability to communicate with the cluster primary component. Restart required.
2020-10-07T13:18:57.385421Z 3 [Note] [MY-000000] [Galera] ReplicatorSMM::abort()
2020-10-07T13:18:57.385453Z 3 [Note] [MY-000000] [Galera] Closing send monitor...
2020-10-07T13:18:57.385484Z 3 [Note] [MY-000000] [Galera] Closed send monitor.
2020-10-07T13:18:57.385519Z 3 [Note] [MY-000000] [Galera] gcomm: terminating thread
2020-10-07T13:18:57.385733Z 3 [Note] [MY-000000] [Galera] gcomm: joining thread
2020-10-07T13:18:57.385762Z 3 [Note] [MY-000000] [Galera] gcomm: closing backend
2020-10-07T13:18:57.945476Z 1 [ERROR] [MY-000000] [Galera] Requesting state transfer failed: -77(File descriptor in bad state)
2020-10-07T13:18:57.945563Z 1 [ERROR] [MY-000000] [Galera] State transfer request failed unrecoverably: 77 (File descriptor in bad state). Most likely it is due to inability to communicate with the cluster primary component. Restart required.