I think you are hitting "https://bugs.launchpad.net/percona-xtradb-cluster/+bug/1282707".
Which is fixed as per the record in following revision "Percona XtraDB Cluster 5.6.22-25.8"
I strongly recommend you upgrade to PXC-5.6.30.
I think you are hitting "https:/ /bugs.launchpad .net/percona- xtradb- cluster/ +bug/1282707".
Which is fixed as per the record in following revision "Percona XtraDB Cluster 5.6.22-25.8"
I strongly recommend you upgrade to PXC-5.6.30.