# Node is not starting 5.6 **URL:** \ **Category:** Percona Server for MySQL 5.6\ **Created:** [April 6, 2023, 2:05pm UTC](https://forums.percona.com/t/node-is-not-starting-5-6/21231 "2023-04-06T14:05:40Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![elkhedewy](https://avatars.discourse-cdn.com/v4/letter/e/5fc32e/32.png) [@elkhedewy](https://forums.percona.com/u/elkhedewy)\ **Post date:** [April 6, 2023, 2:05pm UTC](https://forums.percona.com/t/node-is-not-starting-5-6/21231/1 "2023-04-06T14:05:40Z")
Hello, I’ve 2 nodes one running as bootstrap and i need the other node to join the cluster. But i got this errors in mysql error log. **The second node LOG:** > Blockquote > Log of wsrep recovery (–wsrep-recover): > 2023-04-06 15:57:04 16022 [Note] Plugin ‘FEDERATED’ is disabled. > 2023-04-06 15:57:04 16022 [Note] InnoDB: Using atomics to ref count buffer pool pages > 2023-04-06 15:57:04 16022 [Note] InnoDB: The InnoDB memory heap is disabled > 2023-04-06 15:57:04 16022 [Note] InnoDB: Mutexes and rw\_locks use GCC atomic builtins > 2023-04-06 15:57:04 16022 [Note] InnoDB: Memory barrier is not used > 2023-04-06 15:57:04 16022 [Note] InnoDB: Compressed tables use zlib 1.2.7 > 2023-04-06 15:57:04 16022 [Note] InnoDB: Using Linux native AIO > 2023-04-06 15:57:04 16022 [Note] InnoDB: Using CPU crc32 instructions > 2023-04-06 15:57:04 16022 [Note] InnoDB: Initializing buffer pool, size = 6.3G > 2023-04-06 15:57:04 16022 [Note] InnoDB: Completed initialization of buffer pool > 2023-04-06 15:57:04 16022 [Note] InnoDB: Highest supported file format is Barracuda. > 2023-04-06 15:57:04 16022 [Note] InnoDB: 128 rollback segment(s) are active. > 2023-04-06 15:57:04 16022 [Note] InnoDB: Waiting for purge to start > 2023-04-06 15:57:04 16022 [Note] InnoDB: Percona XtraDB ([http://www.percona.com](http://www.percona.com)) 5.6.41-84.1 started; log sequence number 1632006 > 2023-04-06 15:57:04 16022 [Warning] InnoDB: Skipping buffer pool dump/restore during wsrep recovery. > 2023-04-06 15:57:04 16022 [Note] WSREP: Recovered position: 00000000-0000-0000-0000-000000000000:-1 > 2023-04-06 15:57:04 16022 [Note] Binlog end > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘partition’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_CHANGED\_PAGES’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_SYS\_DATAFILES’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_SYS\_TABLESPACES’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_SYS\_FOREIGN\_COLS’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_SYS\_FOREIGN’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_SYS\_FIELDS’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_SYS\_COLUMNS’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_SYS\_INDEXES’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_SYS\_TABLESTATS’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_SYS\_TABLES’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_FT\_INDEX\_TABLE’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_FT\_INDEX\_CACHE’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_FT\_CONFIG’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_FT\_BEING\_DELETED’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_FT\_DELETED’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_FT\_DEFAULT\_STOPWORD’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_METRICS’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_BUFFER\_POOL\_STATS’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_BUFFER\_PAGE\_LRU’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_BUFFER\_PAGE’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_CMP\_PER\_INDEX\_RESET’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_CMP\_PER\_INDEX’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_CMPMEM\_RESET’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_CMPMEM’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_CMP\_RESET’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_CMP’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_LOCK\_WAITS’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_LOCKS’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘INNODB\_TRX’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘XTRADB\_ZIP\_DICT\_COLS’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘XTRADB\_ZIP\_DICT’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘XTRADB\_RSEG’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘XTRADB\_INTERNAL\_HASH\_TABLES’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘XTRADB\_READ\_VIEW’ > 2023-04-06 15:57:04 16022 [Note] Shutting down plugin ‘InnoDB’ > 2023-04-06 15:57:04 16022 [Note] InnoDB: FTS optimize thread exiting. > 2023-04-06 15:57:04 16022 [Note] InnoDB: Starting shutdown… > 2023-04-06 15:57:06 16022 [Note] InnoDB: Waiting for page\_cleaner to finish flushing of buffer pool > 2023-04-06 15:57:07 16022 [Note] InnoDB: Shutdown completed; log sequence number 1632184 > 2023-04-06 15:57:07 16022 [Note] Shutting down plugin ‘BLACKHOLE’ > 2023-04-06 15:57:07 16022 [Note] Shutting down plugin ‘ARCHIVE’ > 2023-04-06 15:57:07 16022 [Note] Shutting down plugin ‘PERFORMANCE\_SCHEMA’ > 2023-04-06 15:57:07 16022 [Note] Shutting down plugin ‘MEMORY’ > 2023-04-06 15:57:07 16022 [Note] Shutting down plugin ‘CSV’ > 2023-04-06 15:57:07 16022 [Note] Shutting down plugin ‘MyISAM’ > 2023-04-06 15:57:07 16022 [Note] Shutting down plugin ‘MRG\_MYISAM’ > 2023-04-06 15:57:07 16022 [Note] Shutting down plugin ‘sha256\_password’ > 2023-04-06 15:57:07 16022 [Note] Shutting down plugin ‘mysql\_old\_password’ > 2023-04-06 15:57:07 16022 [Note] Shutting down plugin ‘mysql\_native\_password’ > 2023-04-06 15:57:07 16022 [Note] Shutting down plugin ‘wsrep’ > 2023-04-06 15:57:07 16022 [Note] Shutting down plugin ‘binlog’ > 2023-04-06 15:57:07 16022 [Note] /usr/sbin/mysqld: Shutdown complete 2023-04-06 15:57:08 16206 [Note] WSREP: Setting wsrep\_ready to false 2023-04-06 15:57:08 16206 [Note] WSREP: Read nil XID from storage engines, skipping position init 2023-04-06 15:57:08 16206 [Note] WSREP: wsrep\_load(): loading provider library ‘/usr/lib64/libgalera\_smm.so’ 2023-04-06 15:57:08 16206 [Note] WSREP: wsrep\_load(): Galera 3.28(rf216443) by Codership Oy [info@codership.com](mailto:info@codership.com) loaded successfully. 2023-04-06 15:57:08 16206 [Note] WSREP: CRC-32C: using hardware acceleration. 2023-04-06 15:57:08 16206 [Note] WSREP: Found saved state: 00000000-0000-0000-0000-000000000000:-1, safe\_to\_bootstrap: 1 2023-04-06 15:57:08 16206 [Note] WSREP: Passing config to GCS: base\_dir = /var/lib/mysql/; base\_host = 10.151.158.54; base\_port = 4567; cert.log\_conflicts = no; debug = no; evs.auto\_evict = 0; evs.delay\_margin = PT1S; evs.delayed\_keep\_period = PT30S; evs.inactive\_check\_period = PT10S; evs.inactive\_timeout = PT1M; evs.install\_timeout = PT1M; evs.join\_retrans\_period = PT1S; evs.keepalive\_period = PT3S; evs.max\_install\_timeouts = 3; evs.send\_window = 1024; evs.stats\_report\_period = PT1M; evs.suspect\_timeout = PT30S; evs.user\_send\_window = 512; evs.view\_forget\_timeout = PT24H; gcache.dir = /var/lib/mysql/; gcache.keep\_pages\_count = 0; gcache.keep\_pages\_size = 0; gcache.mem\_size = 0; gcache.name = /var/lib/mysql//galera.cache; gcache.page\_size = 128M; gcache.recover = no; gcache.size = 2048M; gcomm.thread\_prio = ; gcs.fc\_debug = 0; gcs.fc\_factor = 1.0; gcs.fc\_limit = 64; 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; g 2023-04-06 15:57:08 16206 [Note] WSREP: GCache history reset: 7c3a28db-d05a-11eb-bbd4-b6d142cfd387:0 → 00000000-0000-0000-0000-000000000000:-1 2023-04-06 15:57:08 16206 [Note] WSREP: Assign initial position for certification: -1, protocol version: -1 2023-04-06 15:57:08 16206 [Note] WSREP: wsrep\_sst\_grab() 2023-04-06 15:57:08 16206 [Note] WSREP: Start replication 2023-04-06 15:57:08 16206 [Note] WSREP: Setting initial position to 00000000-0000-0000-0000-000000000000:-1 2023-04-06 15:57:08 16206 [Note] WSREP: protonet asio version 0 2023-04-06 15:57:08 16206 [Note] WSREP: Using CRC-32C for message checksums. 2023-04-06 15:57:08 16206 [Note] WSREP: backend: asio 2023-04-06 15:57:08 16206 [Note] WSREP: gcomm thread scheduling priority set to other:0 2023-04-06 15:57:08 16206 [Note] WSREP: restore pc from disk successfully 2023-04-06 15:57:08 16206 [Note] WSREP: GMCast version 0 2023-04-06 15:57:08 16206 [Note] WSREP: (ad6576ad, ‘tcp://0.0.0.0:4567’) listening at tcp://0.0.0.0:4567 2023-04-06 15:57:08 16206 [Note] WSREP: (ad6576ad, ‘tcp://0.0.0.0:4567’) multicast: , ttl: 1 2023-04-06 15:57:08 16206 [Note] WSREP: EVS version 0 2023-04-06 15:57:08 16206 [Note] WSREP: gcomm: connecting to group ‘patientportal\_cluster’, peer ‘10.151.158.26:,10.151.158.53:’ 2023-04-06 15:57:08 16206 [Note] WSREP: (ad6576ad, ‘tcp://0.0.0.0:4567’) connection established to aabd5bb7 tcp://10.151.158.26:4567 2023-04-06 15:57:08 16206 [Note] WSREP: (ad6576ad, ‘tcp://0.0.0.0:4567’) turning message relay requesting on, nonlive peers: 2023-04-06 15:57:08 16206 [Note] WSREP: declaring aabd5bb7 at tcp://10.151.158.26:4567 stable 2023-04-06 15:57:08 16206 [Note] WSREP: Node aabd5bb7 state prim 2023-04-06 15:57:08 16206 [Note] WSREP: view(view\_id(PRIM,aabd5bb7,61) memb { aabd5bb7,0 ad6576ad,0 } joined { } left { } partitioned { }) 2023-04-06 15:57:08 16206 [Note] WSREP: save pc into disk 2023-04-06 15:57:08 16206 [Note] WSREP: discarding pending addr without UUID: tcp://10.151.158.53:4567 2023-04-06 15:57:08 16206 [Note] WSREP: clear restored view 2023-04-06 15:57:09 16206 [Note] WSREP: gcomm: connected 2023-04-06 15:57:09 16206 [Note] WSREP: Changing maximum packet size to 64500, resulting msg size: 32636 2023-04-06 15:57:09 16206 [Note] WSREP: Shifting CLOSED → OPEN (TO: 0) 2023-04-06 15:57:09 16206 [Note] WSREP: Opened channel ‘patientportal\_cluster’ 2023-04-06 15:57:09 16206 [Note] WSREP: New COMPONENT: primary = yes, bootstrap = no, my\_idx = 1, memb\_num = 2 2023-04-06 15:57:09 16206 [Note] WSREP: STATE EXCHANGE: Waiting for state UUID. 2023-04-06 15:57:09 16206 [Note] WSREP: Waiting for SST to complete. 2023-04-06 15:57:09 16206 [Note] WSREP: STATE EXCHANGE: sent state msg: ea8bf72a-d482-11ed-ad4e-cf48883648f7 2023-04-06 15:57:09 16206 [Note] WSREP: STATE EXCHANGE: got state msg: ea8bf72a-d482-11ed-ad4e-cf48883648f7 from 0 (ppdb01) 2023-04-06 15:57:09 16206 [Note] WSREP: STATE EXCHANGE: got state msg: ea8bf72a-d482-11ed-ad4e-cf48883648f7 from 1 (ppdb03) 2023-04-06 15:57:09 16206 [Note] WSREP: Quorum results: version = 4, component = PRIMARY, conf\_id = 30, members = 1/2 (joined/total), act\_id = 12157679, last\_appl. = -1, protocols = 0/9/3 (gcs/repl/appl), group UUID = 7c3a28db-d05a-11eb-bbd4-b6d142cfd387 2023-04-06 15:57:09 16206 [Note] WSREP: Flow-control interval: [91, 91] 2023-04-06 15:57:09 16206 [Note] WSREP: Trying to continue unpaused monitor 2023-04-06 15:57:09 16206 [Note] WSREP: Shifting OPEN → PRIMARY (TO: 12157679) 2023-04-06 15:57:09 16206 [Note] WSREP: State transfer required: Group state: 7c3a28db-d05a-11eb-bbd4-b6d142cfd387:12157679 Local state: 00000000-0000-0000-0000-000000000000:-1 2023-04-06 15:57:09 16206 [Note] WSREP: New cluster view: global state: 7c3a28db-d05a-11eb-bbd4-b6d142cfd387:12157679, view# 31: Primary, number of nodes: 2, my index: 1, protocol version 3 2023-04-06 15:57:09 16206 [Note] WSREP: Setting wsrep\_ready to true 2023-04-06 15:57:09 16206 [Warning] WSREP: Gap in state sequence. Need state transfer. 2023-04-06 15:57:09 16206 [Note] WSREP: Setting wsrep\_ready to false 2023-04-06 15:57:09 16206 [Note] WSREP: Running: 'wsrep\_sst\_xtrabackup-v2 --role ‘joiner’ --address ‘10.151.158.54’ --datadir ‘/var/lib/mysql/’ --defaults-file ‘/etc/my.cnf’ --defaults-group-suffix ‘’ --parent ‘16206’ --mysqld-version ‘5.6.41-84.1-56’ ‘’ ’ WSREP\_SST: [INFO] Streaming with xbstream (2023-04-06 15:57:09) WSREP\_SST: [INFO] Using socat as streamer (2023-04-06 15:57:09) WSREP\_SST: [INFO] Stale sst\_in\_progress file: /var/lib/mysql//sst\_in\_progress (2023-04-06 15:57:09) WSREP\_SST: [INFO] Evaluating timeout -k 110 100 socat -u TCP-LISTEN:4444,reuseaddr,retry=30 stdio | pigz -dc | xbstream -x; RC=( ${PIPESTATUS[@]} ) (2023-04-06 15:57:09) 2023-04-06 15:57:09 16206 [Note] WSREP: Prepared SST request: xtrabackup-v2|10.151.158.54:4444/xtrabackup\_sst//1 2023-04-06 15:57:09 16206 [Note] WSREP: Auto Increment Offset/Increment re-align with cluster membership change (Offset: 1 → 2) (Increment: 1 → 2) 2023-04-06 15:57:09 16206 [Note] WSREP: wsrep\_notify\_cmd is not defined, skipping notification. 2023-04-06 15:57:09 16206 [Note] WSREP: REPL Protocols: 9 (4, 2) 2023-04-06 15:57:09 16206 [Note] WSREP: Assign initial position for certification: 12157679, protocol version: 4 2023-04-06 15:57:09 16206 [Note] WSREP: Service thread queue flushed. 2023-04-06 15:57:09 16206 [Warning] WSREP: Failed to prepare for incremental state transfer: Local state UUID (00000000-0000-0000-0000-000000000000) does not match group state UUID (7c3a28db-d05a-11eb-bbd4-b6d142cfd387): 1 (Operation not permitted) at galera/src/replicator\_str.cpp:prepare\_for\_IST():535. IST will be unavailable. 2023-04-06 15:57:09 16206 [Note] WSREP: Member 1.0 (ppdb03) requested state transfer from ‘_any_’. Selected 0.0 (ppdb01)(SYNCED) as donor. 2023-04-06 15:57:09 16206 [Note] WSREP: Shifting PRIMARY → JOINER (TO: 12157679) 2023-04-06 15:57:09 16206 [Note] WSREP: Requesting state transfer: success, donor: 0 2023-04-06 15:57:09 16206 [Note] WSREP: GCache history reset: 00000000-0000-0000-0000-000000000000:0 → 7c3a28db-d05a-11eb-bbd4-b6d142cfd387:12157679 WSREP\_SST: [INFO] WARNING: Stale temporary SST directory: /var/lib/mysql//.sst from previous state transfer. Removing (2023-04-06 15:57:10) WSREP\_SST: [INFO] Proceeding with SST (2023-04-06 15:57:10) WSREP\_SST: [INFO] Evaluating socat -u TCP-LISTEN:4444,reuseaddr,retry=30 stdio | pigz -dc | xbstream -x; RC=( ${PIPESTATUS[@]} ) (2023-04-06 15:57:10) WSREP\_SST: [INFO] Cleaning the existing datadir and innodb-data/log directories (2023-04-06 15:57:10) removed ‘/var/lib/mysql/ib\_logfile0’ removed ‘/var/lib/mysql/performance\_schema/table\_io\_waits\_summary\_by\_table.frm’ removed ‘/var/lib/mysql/performance\_schema/table\_lock\_waits\_summary\_by\_table.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_stages\_summary\_global\_by\_event\_name.frm’ removed ‘/var/lib/mysql/performance\_schema/socket\_summary\_by\_event\_name.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_statements\_summary\_by\_thread\_by\_event\_name.frm’ removed ‘/var/lib/mysql/performance\_schema/threads.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_statements\_summary\_by\_digest.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_waits\_summary\_by\_account\_by\_event\_name.frm’ removed ‘/var/lib/mysql/performance\_schema/db.opt’ removed ‘/var/lib/mysql/performance\_schema/events\_stages\_history.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_waits\_summary\_global\_by\_event\_name.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_statements\_current.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_statements\_summary\_by\_account\_by\_event\_name.frm’ removed ‘/var/lib/mysql/performance\_schema/setup\_consumers.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_waits\_summary\_by\_thread\_by\_event\_name.frm’ removed ‘/var/lib/mysql/performance\_schema/file\_summary\_by\_instance.frm’ removed ‘/var/lib/mysql/performance\_schema/setup\_actors.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_waits\_summary\_by\_host\_by\_event\_name.frm’ removed ‘/var/lib/mysql/performance\_schema/host\_cache.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_waits\_summary\_by\_user\_by\_event\_name.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_waits\_summary\_by\_instance.frm’ removed ‘/var/lib/mysql/performance\_schema/objects\_summary\_global\_by\_type.frm’ removed ‘/var/lib/mysql/performance\_schema/file\_instances.frm’ removed ‘/var/lib/mysql/performance\_schema/users.frm’ removed ‘/var/lib/mysql/performance\_schema/cond\_instances.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_statements\_history.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_stages\_summary\_by\_thread\_by\_event\_name.frm’ removed ‘/var/lib/mysql/performance\_schema/session\_account\_connect\_attrs.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_stages\_summary\_by\_host\_by\_event\_name.frm’ removed ‘/var/lib/mysql/performance\_schema/table\_io\_waits\_summary\_by\_index\_usage.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_statements\_summary\_by\_user\_by\_event\_name.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_waits\_current.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_statements\_summary\_by\_host\_by\_event\_name.frm’ removed ‘/var/lib/mysql/performance\_schema/setup\_objects.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_stages\_summary\_by\_account\_by\_event\_name.frm’ removed ‘/var/lib/mysql/performance\_schema/setup\_instruments.frm’ removed ‘/var/lib/mysql/performance\_schema/file\_summary\_by\_event\_name.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_waits\_history\_long.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_stages\_summary\_by\_user\_by\_event\_name.frm’ removed ‘/var/lib/mysql/performance\_schema/rwlock\_instances.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_statements\_history\_long.frm’ removed ‘/var/lib/mysql/performance\_schema/hosts.frm’ removed ‘/var/lib/mysql/performance\_schema/socket\_summary\_by\_instance.frm’ removed ‘/var/lib/mysql/performance\_schema/accounts.frm’ removed ‘/var/lib/mysql/performance\_schema/performance\_timers.frm’ removed ‘/var/lib/mysql/performance\_schema/socket\_instances.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_statements\_summary\_global\_by\_event\_name.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_stages\_history\_long.frm’ removed ‘/var/lib/mysql/performance\_schema/mutex\_instances.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_waits\_history.frm’ removed ‘/var/lib/mysql/performance\_schema/session\_connect\_attrs.frm’ removed ‘/var/lib/mysql/performance\_schema/events\_stages\_current.frm’ removed ‘/var/lib/mysql/performance\_schema/setup\_timers.frm’ removed directory: ‘/var/lib/mysql/performance\_schema’ removed directory: ‘/var/lib/mysql/test’ removed ‘/var/lib/mysql/ibdata1’ removed ‘/var/lib/mysql/mysql/servers.MYI’ removed ‘/var/lib/mysql/mysql/time\_zone\_leap\_second.MYI’ removed ‘/var/lib/mysql/mysql/slave\_relay\_log\_info.frm’ removed ‘/var/lib/mysql/mysql/slave\_worker\_info.frm’ removed ‘/var/lib/mysql/mysql/proc.MYI’ removed ‘/var/lib/mysql/mysql/proxies\_priv.MYI’ removed ‘/var/lib/mysql/mysql/servers.MYD’ removed ‘/var/lib/mysql/mysql/help\_keyword.MYD’ removed ‘/var/lib/mysql/mysql/help\_relation.frm’ removed ‘/var/lib/mysql/mysql/help\_keyword.frm’ removed ‘/var/lib/mysql/mysql/db.frm’ removed ‘/var/lib/mysql/mysql/slave\_master\_info.frm’ removed ‘/var/lib/mysql/mysql/help\_category.MYI’ removed ‘/var/lib/mysql/mysql/proc.MYD’ removed ‘/var/lib/mysql/mysql/slow\_log.CSV’ removed ‘/var/lib/mysql/mysql/general\_log.CSV’ removed ‘/var/lib/mysql/mysql/columns\_priv.frm’ removed ‘/var/lib/mysql/mysql/time\_zone\_name.MYD’ removed ‘/var/lib/mysql/mysql/columns\_priv.MYD’ removed ‘/var/lib/mysql/mysql/func.frm’ removed ‘/var/lib/mysql/mysql/ndb\_binlog\_index.MYI’ removed ‘/var/lib/mysql/mysql/slow\_log.CSM’ removed ‘/var/lib/mysql/mysql/event.MYI’ removed ‘/var/lib/mysql/mysql/tables\_priv.MYI’ removed ‘/var/lib/mysql/mysql/proxies\_priv.MYD’ removed ‘/var/lib/mysql/mysql/columns\_priv.MYI’ removed ‘/var/lib/mysql/mysql/func.MYD’ removed ‘/var/lib/mysql/mysql/help\_topic.MYI’ removed ‘/var/lib/mysql/mysql/db.MYI’ removed ‘/var/lib/mysql/mysql/innodb\_index\_stats.ibd’ removed ‘/var/lib/mysql/mysql/slow\_log.frm’ removed ‘/var/lib/mysql/mysql/time\_zone\_leap\_second.frm’ removed ‘/var/lib/mysql/mysql/time\_zone\_transition\_type.frm’ removed ‘/var/lib/mysql/mysql/help\_topic.frm’ removed ‘/var/lib/mysql/mysql/innodb\_table\_stats.ibd’ removed ‘/var/lib/mysql/mysql/proxies\_priv.frm’ removed ‘/var/lib/mysql/mysql/time\_zone\_transition\_type.MYI’ removed ‘/var/lib/mysql/mysql/user.MYD’ removed ‘/var/lib/mysql/mysql/slave\_relay\_log\_info.ibd’ removed ‘/var/lib/mysql/mysql/help\_category.frm’ removed ‘/var/lib/mysql/mysql/innodb\_index\_stats.frm’ removed ‘/var/lib/mysql/mysql/plugin.MYI’ removed ‘/var/lib/mysql/mysql/tables\_priv.MYD’ removed ‘/var/lib/mysql/mysql/ndb\_binlog\_index.MYD’ removed ‘/var/lib/mysql/mysql/help\_relation.MYD’ removed ‘/var/lib/mysql/mysql/help\_relation.MYI’ removed ‘/var/lib/mysql/mysql/plugin.MYD’ removed ‘/var/lib/mysql/mysql/time\_zone\_transition.MYD’ removed ‘/var/lib/mysql/mysql/help\_topic.MYD’ removed ‘/var/lib/mysql/mysql/db.MYD’ removed ‘/var/lib/mysql/mysql/slave\_master\_info.ibd’ removed ‘/var/lib/mysql/mysql/time\_zone\_leap\_second.MYD’ removed ‘/var/lib/mysql/mysql/procs\_priv.frm’ removed ‘/var/lib/mysql/mysql/time\_zone\_name.frm’ removed ‘/var/lib/mysql/mysql/time\_zone.MYI’ removed ‘/var/lib/mysql/mysql/time\_zone.frm’ removed ‘/var/lib/mysql/mysql/plugin.frm’ removed ‘/var/lib/mysql/mysql/user.MYI’ removed ‘/var/lib/mysql/mysql/general\_log.frm’ removed ‘/var/lib/mysql/mysql/proc.frm’ removed ‘/var/lib/mysql/mysql/tables\_priv.frm’ removed ‘/var/lib/mysql/mysql/innodb\_table\_stats.frm’ removed ‘/var/lib/mysql/mysql/procs\_priv.MYI’ removed ‘/var/lib/mysql/mysql/time\_zone\_name.MYI’ removed ‘/var/lib/mysql/mysql/help\_keyword.MYI’ removed ‘/var/lib/mysql/mysql/func.MYI’ removed ‘/var/lib/mysql/mysql/user.frm’ removed ‘/var/lib/mysql/mysql/time\_zone\_transition.frm’ removed ‘/var/lib/mysql/mysql/time\_zone\_transition\_type.MYD’ removed ‘/var/lib/mysql/mysql/event.MYD’ removed ‘/var/lib/mysql/mysql/help\_category.MYD’ removed ‘/var/lib/mysql/mysql/event.frm’ removed ‘/var/lib/mysql/mysql/time\_zone\_transition.MYI’ removed ‘/var/lib/mysql/mysql/ndb\_binlog\_index.frm’ removed ‘/var/lib/mysql/mysql/time\_zone.MYD’ removed ‘/var/lib/mysql/mysql/servers.frm’ removed ‘/var/lib/mysql/mysql/general\_log.CSM’ removed ‘/var/lib/mysql/mysql/slave\_worker\_info.ibd’ removed ‘/var/lib/mysql/mysql/procs\_priv.MYD’ removed directory: ‘/var/lib/mysql/mysql’ removed ‘/var/lib/mysql/ib\_logfile1’ WSREP\_SST: [INFO] Waiting for SST streaming to complete! (2023-04-06 15:57:10) 2023-04-06 15:57:11 16206 [Note] WSREP: (ad6576ad, ‘tcp://0.0.0.0:4567’) turning message relay requesting off WSREP\_SST: [ERROR] xtrabackup\_checkpoints missing, failed innobackupex/SST on donor (2023-04-06 15:57:21) WSREP\_SST: [ERROR] Cleanup after exit with status:2 (2023-04-06 15:57:21) 2023-04-06 15:57:21 16206 [ERROR] WSREP: Process completed with error: wsrep\_sst\_xtrabackup-v2 --role ‘joiner’ --address ‘10.151.158.54’ --datadir ‘/var/lib/mysql/’ --defaults-file ‘/etc/my.cnf’ --defaults-group-suffix ‘’ --parent ‘16206’ --mysqld-version ‘5.6.41-84.1-56’ ‘’ : 2 (No such file or directory) 2023-04-06 15:57:21 16206 [ERROR] WSREP: Failed to read uuid:seqno from joiner script. 2023-04-06 15:57:21 16206 [ERROR] WSREP: SST script aborted with error 2 (No such file or directory) 2023-04-06 15:57:21 16206 [ERROR] WSREP: SST failed: 2 (No such file or directory) 2023-04-06 15:57:21 16206 [ERROR] Aborting 2023-04-06 15:57:21 16206 [Note] WSREP: Signalling cancellation of the SST request. 2023-04-06 15:57:21 16206 [Note] WSREP: SST request was cancelled 2023-04-06 15:57:21 16206 [Note] WSREP: Closing send monitor… 2023-04-06 15:57:21 16206 [Note] WSREP: Closed send monitor. 2023-04-06 15:57:21 16206 [Note] WSREP: gcomm: terminating thread 2023-04-06 15:57:21 16206 [Note] WSREP: gcomm: joining thread 2023-04-06 15:57:21 16206 [Note] WSREP: gcomm: closing backend 2023-04-06 15:57:23 16206 [Note] WSREP: Service disconnected. 2023-04-06 15:57:23 16206 [Note] WSREP: Waiting to close threads… 2023-04-06 15:57:23 16206 [Note] WSREP: rollbacker thread exiting 2023-04-06 15:57:24 16206 [Note] WSREP: (ad6576ad, ‘tcp://0.0.0.0:4567’) connection to peer aabd5bb7 with addr tcp://10.151.158.26:4567 timed out, no messages seen in PT3S 2023-04-06 15:57:24 16206 [Note] WSREP: (ad6576ad, ‘tcp://0.0.0.0:4567’) turning message relay requesting on, nonlive peers: tcp://10.151.158.26:4567 2023-04-06 15:57:26 16206 [Note] WSREP: (ad6576ad, ‘tcp://0.0.0.0:4567’) reconnecting to aabd5bb7 (tcp://10.151.158.26:4567), attempt 0 2023-04-06 15:57:28 16206 [Note] WSREP: Some threads may fail to exit. 2023-04-06 15:57:28 16206 [Note] Binlog end 2023-04-06 15:57:28 16206 [Note] /usr/sbin/mysqld: Shutdown complete Fatal signal 6 while backtracing What is the problem there? ---
**Author:** ![elkhedewy](https://avatars.discourse-cdn.com/v4/letter/e/5fc32e/32.png) [@elkhedewy](https://forums.percona.com/u/elkhedewy)\ **Post date:** [April 6, 2023, 2:10pm UTC](https://forums.percona.com/t/node-is-not-starting-5-6/21231/2 "2023-04-06T14:10:33Z")
First node log (bootstraped node) > Blockquote > 2023-04-06 16:03:16 5104 [Note] WSREP: (aabd5bb7, ‘tcp://0.0.0.0:4567’) connection established to ad6576ad tcp://10.151.158.54:4567 > 2023-04-06 16:03:16 5104 [Note] WSREP: (aabd5bb7, ‘tcp://0.0.0.0:4567’) turning message relay requesting on, nonlive peers: > 2023-04-06 16:03:17 5104 [Note] WSREP: declaring ad6576ad at tcp://10.151.158.54:4567 stable > 2023-04-06 16:03:17 5104 [Note] WSREP: Node aabd5bb7 state prim > 2023-04-06 16:03:17 5104 [Note] WSREP: view(view\_id(PRIM,aabd5bb7,63) memb { > aabd5bb7,0 > ad6576ad,0 > } joined { > } left { > } partitioned { > }) > 2023-04-06 16:03:17 5104 [Note] WSREP: save pc into disk > 2023-04-06 16:03:17 5104 [Note] WSREP: New COMPONENT: primary = yes, bootstrap = no, my\_idx = 0, memb\_num = 2 > 2023-04-06 16:03:17 5104 [Note] WSREP: STATE\_EXCHANGE: sent state UUID: c7ab319f-d483-11ed-a0b7-fe082c73ffe5 > 2023-04-06 16:03:17 5104 [Note] WSREP: STATE EXCHANGE: sent state msg: c7ab319f-d483-11ed-a0b7-fe082c73ffe5 > 2023-04-06 16:03:17 5104 [Note] WSREP: STATE EXCHANGE: got state msg: c7ab319f-d483-11ed-a0b7-fe082c73ffe5 from 0 (ppdb01) > 2023-04-06 16:03:17 5104 [Note] WSREP: STATE EXCHANGE: got state msg: c7ab319f-d483-11ed-a0b7-fe082c73ffe5 from 1 (ppdb03) > 2023-04-06 16:03:17 5104 [Note] WSREP: Quorum results: > version = 4, > component = PRIMARY, > conf\_id = 32, > members = 1/2 (joined/total), > act\_id = 12157759, > last\_appl. = 12157652, > protocols = 0/9/3 (gcs/repl/appl), > group UUID = 7c3a28db-d05a-11eb-bbd4-b6d142cfd387 > 2023-04-06 16:03:17 5104 [Note] WSREP: Flow-control interval: [91, 91] > 2023-04-06 16:03:17 5104 [Note] WSREP: Trying to continue unpaused monitor > 2023-04-06 16:03:17 5104 [Note] WSREP: New cluster view: global state: 7c3a28db-d05a-11eb-bbd4-b6d142cfd387:12157759, view# 33: Primary, number of nodes: 2, my index: 0, protocol version 3 > 2023-04-06 16:03:17 5104 [Note] WSREP: Setting wsrep\_ready to true > 2023-04-06 16:03:17 5104 [Note] WSREP: Auto Increment Offset/Increment re-align with cluster membership change (Offset: 1 → 1) (Increment: 1 → 2) > 2023-04-06 16:03:17 5104 [Note] WSREP: wsrep\_notify\_cmd is not defined, skipping notification. > 2023-04-06 16:03:17 5104 [Note] WSREP: REPL Protocols: 9 (4, 2) > 2023-04-06 16:03:17 5104 [Note] WSREP: Assign initial position for certification: 12157759, protocol version: 4 > 2023-04-06 16:03:17 5104 [Note] WSREP: Service thread queue flushed. > 2023-04-06 16:03:17 5104 [Note] WSREP: Member 1.0 (ppdb03) requested state transfer from ‘_any_’. Selected 0.0 (ppdb01)(SYNCED) as donor. > 2023-04-06 16:03:17 5104 [Note] WSREP: Shifting SYNCED → DONOR/DESYNCED (TO: 12157759) > 2023-04-06 16:03:17 5104 [Note] WSREP: wsrep\_notify\_cmd is not defined, skipping notification. > 2023-04-06 16:03:18 5104 [Note] WSREP: Running: 'wsrep\_sst\_xtrabackup-v2 --role ‘donor’ --address ‘10.151.158.54:4444/xtrabackup\_sst//1’ --socket ‘/var/lib/mysql/mysql.sock’ --datadir ‘/var/lib/mysql/’ --defaults-file ‘/etc/my.cnf’ --defaults-group-suffix ‘’ --mysqld-version ‘5.6.41-84.1-56’ ‘’ --gtid ‘7c3a28db-d05a-11eb-bbd4-b6d142cfd387:12157759’ ’ > 2023-04-06 16:03:18 5104 [Note] WSREP: sst\_donor\_thread signaled with 0 > WSREP\_SST: [INFO] Streaming with xbstream (2023-04-06 16:03:18) > WSREP\_SST: [INFO] Using socat as streamer (2023-04-06 16:03:18) > WSREP\_SST: [INFO] Streaming SST meta-info file before SST (2023-04-06 16:03:18) > WSREP\_SST: [INFO] Evaluating xbstream -c ${FILE\_TO\_STREAM} | pigz | socat -u stdio TCP:10.151.158.54:4444,retry=30 ; RC=( ${PIPESTATUS[@]} ) (2023-04-06 16:03:18) > WSREP\_SST: [INFO] Sleeping before data transfer for SST (2023-04-06 16:03:18) > 2023-04-06 16:03:20 5104 [Note] WSREP: (aabd5bb7, ‘tcp://0.0.0.0:4567’) turning message relay requesting off > WSREP\_SST: [INFO] Streaming the backup to joiner at 10.151.158.54 4444 (2023-04-06 16:03:28) > WSREP\_SST: [INFO] Evaluating innobackupex --defaults-file=/etc/my.cnf --defaults-group=mysqld --no-version-check $INNOEXTRA --galera-info --stream=$sfmt $itmpdir 2\>${DATA}/innobackup.backup.log | pigz | socat -u stdio TCP:10.151.158.54:4444,retry=30; RC=( ${PIPESTATUS[@]} ) (2023-04-06 16:03:28) > 2023-04-06 16:03:32 5104 [Warning] Aborted connection 11930162 to db: ‘unconnected’ user: ‘root’ host: ‘localhost’ (Got an error reading communication packets) > WSREP\_SST: [ERROR] innobackupex finished with error: 1. Check /var/lib/mysql//innobackup.backup.log (2023-04-06 16:03:32) > WSREP\_SST: [ERROR] Cleanup after exit with status:22 (2023-04-06 16:03:32) > WSREP\_SST: [INFO] Cleaning up temporary directories (2023-04-06 16:03:32) > 2023-04-06 16:03:32 5104 [ERROR] WSREP: Failed to read from: wsrep\_sst\_xtrabackup-v2 --role ‘donor’ --address ‘10.151.158.54:4444/xtrabackup\_sst//1’ --socket ‘/var/lib/mysql/mysql.sock’ --datadir ‘/var/lib/mysql/’ --defaults-file ‘/etc/my.cnf’ --defaults-group-suffix ‘’ --mysqld-version ‘5.6.41-84.1-56’ ‘’ --gtid ‘7c3a28db-d05a-11eb-bbd4-b6d142cfd387:12157759’ > 2023-04-06 16:03:32 5104 [ERROR] WSREP: Process completed with error: wsrep\_sst\_xtrabackup-v2 --role ‘donor’ --address ‘10.151.158.54:4444/xtrabackup\_sst//1’ --socket ‘/var/lib/mysql/mysql.sock’ --datadir ‘/var/lib/mysql/’ --defaults-file ‘/etc/my.cnf’ --defaults-group-suffix ‘’ --mysqld-version ‘5.6.41-84.1-56’ ‘’ --gtid ‘7c3a28db-d05a-11eb-bbd4-b6d142cfd387:12157759’ : 22 (Invalid argument) > 2023-04-06 16:03:33 5104 [Note] WSREP: forgetting ad6576ad (tcp://10.151.158.54:4567) > 2023-04-06 16:03:33 5104 [Note] WSREP: Node aabd5bb7 state prim > 2023-04-06 16:03:33 5104 [Note] WSREP: view(view\_id(PRIM,aabd5bb7,64) memb { > aabd5bb7,0 > } joined { > } left { > } partitioned { > ad6576ad,0 > }) > 2023-04-06 16:03:33 5104 [Note] WSREP: save pc into disk > 2023-04-06 16:03:33 5104 [Note] WSREP: forgetting ad6576ad (tcp://10.151.158.54:4567) > 2023-04-06 16:03:33 5104 [Note] WSREP: New COMPONENT: primary = yes, bootstrap = no, my\_idx = 0, memb\_num = 1 > 2023-04-06 16:03:33 5104 [Note] WSREP: STATE\_EXCHANGE: sent state UUID: d12d42fb-d483-11ed-9af3-270862b732fa > 2023-04-06 16:03:33 5104 [Note] WSREP: STATE EXCHANGE: sent state msg: d12d42fb-d483-11ed-9af3-270862b732fa > 2023-04-06 16:03:33 5104 [Note] WSREP: STATE EXCHANGE: got state msg: d12d42fb-d483-11ed-9af3-270862b732fa from 0 (ppdb01) > 2023-04-06 16:03:33 5104 [Note] WSREP: Quorum results: > version = 4, > component = PRIMARY, > conf\_id = 33, > members = 1/1 (joined/total), > act\_id = 12157759, > last\_appl. = 12157652, > protocols = 0/9/3 (gcs/repl/appl), > group UUID = 7c3a28db-d05a-11eb-bbd4-b6d142cfd387 > 2023-04-06 16:03:33 5104 [Note] WSREP: Flow-control interval: [64, 64] > 2023-04-06 16:03:33 5104 [Note] WSREP: Trying to continue unpaused monitor > 2023-04-06 16:03:33 5104 [Warning] WSREP: Could not find peer: ad6576ad-d482-11ed-83ef-ee205015a892 > 2023-04-06 16:03:33 5104 [Warning] WSREP: 0.0 (ppdb01): State transfer to -1.-1 (left the group) failed: -22 (Invalid argument) > 2023-04-06 16:03:33 5104 [Note] WSREP: Shifting DONOR/DESYNCED → JOINED (TO: 12157759) > 2023-04-06 16:03:33 5104 [Note] WSREP: Member 0.0 (ppdb01) synced with group. > 2023-04-06 16:03:33 5104 [Note] WSREP: Shifting JOINED → SYNCED (TO: 12157759) > 2023-04-06 16:03:33 5104 [ERROR] WSREP: Command did not run: wsrep\_sst\_xtrabackup-v2 --role ‘donor’ --address ‘10.151.158.54:4444/xtrabackup\_sst//1’ --socket ‘/var/lib/mysql/mysql.sock’ --datadir ‘/var/lib/mysql/’ --defaults-file ‘/etc/my.cnf’ --defaults-group-suffix ‘’ --mysqld-version ‘5.6.41-84.1-56’ ‘’ --gtid ‘7c3a28db-d05a-11eb-bbd4-b6d142cfd387:12157759’ > 2023-04-06 16:03:33 5104 [Warning] WSREP: Protocol violation. JOIN message sender 0.0 (ppdb01) is not in state transfer (SYNCED). Message ignored. > 2023-04-06 16:03:33 5104 [Note] WSREP: New cluster view: global state: 7c3a28db-d05a-11eb-bbd4-b6d142cfd387:12157759, view# 34: Primary, number of nodes: 1, my index: 0, protocol version 3 > 2023-04-06 16:03:33 5104 [Note] WSREP: Setting wsrep\_ready to true > 2023-04-06 16:03:33 5104 [Note] WSREP: Auto Increment Offset/Increment re-align with cluster membership change (Offset: 1 → 1) (Increment: 2 → 1) > 2023-04-06 16:03:33 5104 [Note] WSREP: wsrep\_notify\_cmd is not defined, skipping notification. > 2023-04-06 16:03:33 5104 [Note] WSREP: REPL Protocols: 9 (4, 2) > 2023-04-06 16:03:33 5104 [Note] WSREP: Assign initial position for certification: 12157759, protocol version: 4 > 2023-04-06 16:03:33 5104 [Note] WSREP: Service thread queue flushed. > 2023-04-06 16:03:33 5104 [Note] WSREP: Synchronized with group, ready for connections > 2023-04-06 16:03:33 5104 [Note] WSREP: Setting wsrep\_ready to true > 2023-04-06 16:03:33 5104 [Note] WSREP: wsrep\_notify\_cmd is not defined, skipping notification. > 2023-04-06 16:03:36 5104 [Note] WSREP: (aabd5bb7, ‘tcp://0.0.0.0:4567’) connection established to ad6576ad tcp://10.151.158.54:4567 > 2023-04-06 16:03:36 5104 [Warning] WSREP: discarding established (time wait) ad6576ad (tcp://10.151.158.54:4567) > 2023-04-06 16:03:38 5104 [Note] WSREP: cleaning up ad6576ad (tcp://10.151.158.54:4567) ---
**Author:** ![matthewb](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/matthewb/32/34_2.png) [@matthewb](https://forums.percona.com/u/matthewb)\ **Post date:** [April 6, 2023, 2:48pm UTC](https://forums.percona.com/t/node-is-not-starting-5-6/21231/3 "2023-04-06T14:48:12Z")
Hello @elkhedewy, PXC 5.6 and MySQL 5.6 have been dead software for many years. PXC 5.7 and MySQL 5.7 will be dead in October 2023. Many bugs and features have been fixed/added between 5.6 and 8.0 (the current standard). I recommend you use PXC 8.0 before wasting time troubleshooting dead 5.6 software. ---
**Author:** ![elkhedewy](https://avatars.discourse-cdn.com/v4/letter/e/5fc32e/32.png) [@elkhedewy](https://forums.percona.com/u/elkhedewy)\ **Post date:** [April 7, 2023, 1:41pm UTC](https://forums.percona.com/t/node-is-not-starting-5-6/21231/4 "2023-04-07T13:41:11Z")
Ok i will upgrade to PXC 8.0 but first i need to solve all old issues ---
**Author:** ![matthewb](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/matthewb/32/34_2.png) [@matthewb](https://forums.percona.com/u/matthewb)\ **Post date:** [April 7, 2023, 2:06pm UTC](https://forums.percona.com/t/node-is-not-starting-5-6/21231/5 "2023-04-07T14:06:24Z")
Old issues may be resolved by default in PXC 8. Unfortunately, the only solution/recommendation we can provide is first upgrade to PXC 8 and verify the problem remains. ---
**Author:** ![elkhedewy](https://avatars.discourse-cdn.com/v4/letter/e/5fc32e/32.png) [@elkhedewy](https://forums.percona.com/u/elkhedewy)\ **Post date:** [April 7, 2023, 2:31pm UTC](https://forums.percona.com/t/node-is-not-starting-5-6/21231/6 "2023-04-07T14:31:06Z")
Okay, is there any documentation for upgrading from 5.6 to PXC 8.0 NOTE: Its production servers and already running . i will search for it, and i appreciate if you can help. Regards, ---
**Author:** ![elkhedewy](https://avatars.discourse-cdn.com/v4/letter/e/5fc32e/32.png) [@elkhedewy](https://forums.percona.com/u/elkhedewy)\ **Post date:** [April 7, 2023, 2:56pm UTC](https://forums.percona.com/t/node-is-not-starting-5-6/21231/7 "2023-04-07T14:56:22Z")
What does this error means? > WSREP\_SST: [INFO] Waiting for SST streaming to complete! (2023-04-07 16:33:53) > 2023-04-07 16:33:54 23075 [Note] WSREP: (ad6576ad, ‘tcp://0.0.0.0:4567’) turning message relay requesting off > WSREP\_SST: [ERROR] xtrabackup\_checkpoints missing, failed innobackupex/SST on donor (2023-04-07 16:34:05) > WSREP\_SST: [ERROR] Cleanup after exit with status:2 (2023-04-07 16:34:05) > 2023-04-07 16:34:05 23075 [ERROR] WSREP: Process completed with error: wsrep\_sst\_xtrabackup-v2 --role ‘joiner’ --address ‘10.151.158.54’ --datadir ‘/var/lib/mysql/’ --defaults-file ‘/etc/my.cnf’ --defaults-group-suffix ‘’ --parent ‘23075’ --mysqld-version ‘5.6.41-84.1-56’ ‘’ : 2 (No such file or directory) > 2023-04-07 16:34:05 23075 [ERROR] WSREP: Failed to read uuid:seqno from joiner script. > 2023-04-07 16:34:05 23075 [ERROR] WSREP: SST script aborted with error 2 (No such file or directory) > 2023-04-07 16:34:05 23075 [ERROR] WSREP: SST failed: 2 (No such file or directory) > 2023-04-07 16:34:05 23075 [ERROR] Aborting ---
**Author:** ![matthewb](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/matthewb/32/34_2.png) [@matthewb](https://forums.percona.com/u/matthewb)\ **Post date:** [April 8, 2023, 1:46pm UTC](https://forums.percona.com/t/node-is-not-starting-5-6/21231/8 "2023-04-08T13:46:45Z")
It means the SST process failed which can happen for any number of reasons. You need to read through the donor logs to understand why. ---
**Author:** ![elkhedewy](https://avatars.discourse-cdn.com/v4/letter/e/5fc32e/32.png) [@elkhedewy](https://forums.percona.com/u/elkhedewy)\ **Post date:** [April 10, 2023, 1:20pm UTC](https://forums.percona.com/t/node-is-not-starting-5-6/21231/9 "2023-04-10T13:20:42Z")
There was no clear log for the error. But i changed the owner of /var/lib/mysql/ to mysql:mysql recursively and this solved the problem. # chown -R mysql:mysql /var/lib/mysql This solved my problem and now all cluster is working fine !!