# PXC 8.x replication issues **URL:** https://forums.percona.com/t/pxc-8-x-replication-issues/15957 **Category:** Percona XtraDB Cluster 8.x **Created:** [June 2, 2022, 11:07am UTC](https://forums.percona.com/t/pxc-8-x-replication-issues/15957 "2022-06-02T11:07:15Z") **Posts on this page:** 1 **Showing post:** 17
### Author: ![Maksim\_Kopachovets](https://avatars.discourse-cdn.com/v4/letter/m/7ab992/32.png) [@Maksim\_Kopachovets](https://forums.percona.com/u/Maksim_Kopachovets) #### Post date: [June 11, 2022, 5:18am UTC](https://forums.percona.com/t/pxc-8-x-replication-issues/15957/17 "2022-06-11T05:18:17Z")
Thanks for the help, I will think that is not so. I don’t understand why when I comment lines in my.cnf (wsrep\_) on PXC1 and start the node without cluster mode, replication works fine with mysql1 And as soon as in cluster mode and it doesn’t matter in bootstrap or already in normal mode, replication starts(Slave\_IO\_Running: Yes/Slave\_SQL\_Running: Yes) up but lags behind and the node crashes from the cluster… The problem, as for me, is hidden in the cluster mode, but there are not so many settings: pxc\_encrypt\_cluster\_traffic = OFF wsrep\_cluster\_address = gcomm://10.0.0.1,10.0.0.2,10.0.0.3 wsrep\_cluster\_name = mysql-cluster wsrep\_node\_address = 10.0.0.1 wsrep\_node\_name = mysql-cluster-n1 wsrep\_provider = /usr/lib64/libgalera\_smm.so wsrep\_provider\_options = ‘evs.inactive\_timeout=PT1M;evs.install\_timeout=PT1M;evs.keepalive\_period=PT3S;evs.send\_window=512;evs.suspect\_timeout=PT30S;evs.user\_send\_window=256;evs.version=1;gcache.size=1G;gcs.fc\_factor=0.8’ wsrep\_slave\_threads = 16 wsrep\_sst\_method = xtrabackup-v2 --- _[View the full topic](https://forums.percona.com/t/pxc-8-x-replication-issues/15957)._