# Unable to join node to Percona XtraDB Cluster 8.4.6 **URL:** \ **Category:** Percona XtraDB Cluster 8.x\ **Created:** [October 31, 2025, 10:00am UTC](https://forums.percona.com/t/unable-to-join-node-to-percona-xtradb-cluster-8-4-6/39665 "2025-10-31T10:00:30Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![pkm2112](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/pkm2112/32/21433_2.png) [@pkm2112](https://forums.percona.com/u/pkm2112)\ **Post date:** [October 31, 2025, 10:00am UTC](https://forums.percona.com/t/unable-to-join-node-to-percona-xtradb-cluster-8-4-6/39665/1 "2025-10-31T10:00:30Z")
Hello Experts Need your help My cluster version is 8.4.6, ssl is not enabled, firewall is not running , selinux is switched to permissive mode ============= begin node 1 Config file ================================ [mysqld] server-id=2 datadir=/data/mysql/pmysqlDATA socket=/data/mysql/sockets/pmySQL84.s0ck port=1521 innodb\_buffer\_pool\_size=134217728 mysqlx\_socket=/data/mysql/sockets/pmySQL84x.s0ck mysqlx-port=15210 pxc\_encrypt\_cluster\_traffic=‘OFF’ wsrep\_on=ON wsrep\_provider=/data/mysql/EE/database/Percona-XtraDB-Cluster\_8.4.6-6.1\_Linux.x86\_64.glibc2.28/lib/libgalera\_smm.so wsrep\_cluster\_name=“test\_cluster” wsrep\_cluster\_address=‘gcomm://10.1.0.6:1527,10.1.0.7:1527’ wsrep\_provider\_options=‘gmcast.listen\_addr=tcp://10.1.0.6:1530’ wsrep\_node\_incoming\_address=10.1.0.6 wsrep\_node\_name=emmbsdb02 wsrep\_node\_address=10.1.0.6 wsrep\_sst\_method=clone wsrep\_sst\_receive\_address=‘10.1.0.6:1532’ wsrep\_node\_incoming\_address=‘10.1.0.6:1540’ [mysqld\_safe] log-error=/var/log/mysql/LOGpmysql846.log pid\_file=/var/run/mysql/pmysql84.pid I was able to bootstrap node1 with following cmd : mysqld\_safe --defaults-file= --datadir=/data/mysql/pmysqlDATA --user=mysql --wsrep-new-cluster ================= begin node2 config file ================================ [mysqld] server-id=3 datadir=/data/mysql/pmysqlDATA socket=/data/mysql/sockets/pmySQL84.s0ck port=1521 innodb\_buffer\_pool\_size=134217728 mysqlx\_socket=/data/mysql/sockets/pmySQL84x.s0ck mysqlx-port=15210 pxc\_encrypt\_cluster\_traffic=‘OFF’ wsrep\_on=ON wsrep\_provider=/data/mysql/EE/database/Percona-XtraDB-Cluster\_8.4.6-6.1\_Linux.x86\_64.glibc2.28/lib/libgalera\_smm.so wsrep\_cluster\_name=“test\_cluster” wsrep\_cluster\_address=‘gcomm://10.1.0.6:1527,10.1.0.7:1527’ wsrep\_provider\_options=‘gmcast.listen\_addr=tcp://10.1.0.7:1530’ wsrep\_node\_incoming\_address=10.1.0.7 wsrep\_node\_name=emmbsdb03 wsrep\_node\_address=10.1.0.7 wsrep\_sst\_method=clone wsrep\_sst\_receive\_address=‘10.1.0.7:1532’ wsrep\_node\_incoming\_address=‘10.1.0.7:1540’ wsrep\_debug=1 [mysqld\_safe] log-error=/var/log/mysql/LOGpmysql846.log pid\_file=/var/run/mysql/pmysql84.pid ================= end node2 config file ================================ [root@emmbsdb03 temp]# Executed following cmd to join node2 to cluster , Couldnt join node2 mysqld\_safe --defaults-file= --datadir=/data/mysql/pmysqlDATA --user=mysql ========================== begin node2 Error log ============================= 2025-10-31T09:17:32.520213Z 0 [Note] [MY-000000] [Galera] Failed to establish connection: Connection refused 2025-10-31T09:17:33.521597Z 0 [Note] [MY-000000] [Galera] Failed to establish connection: Connection refused 2025-10-31T09:17:34.020603Z 0 [Note] [MY-000000] [Galera] Failed to establish connection: Connection refused 2025-10-31T09:17:35.020439Z 0 [Note] [MY-000000] [Galera] PC protocol downgrade 1 → 0 2025-10-31T09:17:35.020528Z 0 [Note] [MY-000000] [Galera] Current view of cluster as seen by this node view ((empty)) 2025-10-31T09:17:35.020903Z 0 [ERROR] [MY-000000] [Galera] failed to open gcomm backend connection: 110: failed to reach primary view (pc.wait\_prim\_timeout) at /mnt/jenkins/workspace/pxc80-autobuild-RELEASE/test/Percona-XtraDB-Cluster-8.4.6-6/percona-xtradb-cluster-galera/gcomm/src/pc.cpp:connect():176 2025-10-31T09:17:35.020951Z 0 [ERROR] [MY-000000] [Galera] /mnt/jenkins/workspace/pxc80-autobuild-RELEASE/test/Percona-XtraDB-Cluster-8.4.6-6/percona-xtradb-cluster-galera/gcs/src/gcs\_core.cpp:gcs\_core\_open():256: Failed to open backend connection: -110 (Connection timed out) 2025-10-31T09:17:36.021156Z 0 [Note] [MY-000000] [Galera] gcomm: terminating thread 2025-10-31T09:17:36.021219Z 0 [Note] [MY-000000] [Galera] gcomm: joining thread 2025-10-31T09:17:36.021290Z 0 [ERROR] [MY-000000] [Galera] /mnt/jenkins/workspace/pxc80-autobuild-RELEASE/test/Percona-XtraDB-Cluster-8.4.6-6/percona-xtradb-cluster-galera/gcs/src/gcs.cpp:gcs\_open():1952: Failed to open channel ‘test\_cluster’ at ‘gcomm://10.1.0.6:1527,10.1.0.7:1527’: -110 (Connection timed out) 2025-10-31T09:17:36.021311Z 0 [ERROR] [MY-000000] [Galera] gcs connect failed: Operation timed out 2025-10-31T09:17:36.021325Z 0 [ERROR] [MY-000000] [WSREP] Provider/Node (gcomm://10.1.0.6:1527,10.1.0.7:1527) failed to establish connection with cluster (reason: 7) 2025-10-31T09:17:36.021336Z 0 [ERROR] [MY-010119] [Server] Aborting ==========================End node2 Error log ============================= ---
**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:** [October 31, 2025, 2:28pm UTC](https://forums.percona.com/t/unable-to-join-node-to-percona-xtradb-cluster-8-4-6/39665/2 "2025-10-31T14:28:00Z")
> [@pkm2112](#): > > wsrep\_cluster\_address=‘gcomm://10.1.0.6:1527,10.1.0.7:1527’ > wsrep\_provider\_options=‘gmcast.listen\_addr=tcp://10.1.0.6:1530’ N1: “Hey! Talk to me on port 1527!” N2: “You got it dude! Calling you now!” N2: “Hey man, you are not responding! Are you listening on port 1527?” N1: “No, I’m listening on 1530” N2: “Then why did you tell me to talk to you on port 1527?!?” ---
**Author:** ![pkm2112](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/pkm2112/32/21433_2.png) [@pkm2112](https://forums.percona.com/u/pkm2112)\ **Post date:** [November 1, 2025, 3:56am UTC](https://forums.percona.com/t/unable-to-join-node-to-percona-xtradb-cluster-8-4-6/39665/3 "2025-11-01T03:56:14Z")
Thanx dude for the help, stuff works now