Node has dropped from cluster error in Galera Cluster
Kedar
Recently I noted a strange MySQL replication error in a Percona XtraDB Cluster (PXC) node replicating from a standard MySQL instance. “Node has dropped from cluster”. This is a quick blog…
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Percona XtraDB Cluster
4 posts
How to fix Percona XtraDB Cluster 8.0 Upgrade issues
Are you planning an upgrade for your Percona XtraDB Cluster (PXC)? Upgrading to PXC 8.0 can be a smooth process, but sometimes challenges arise that require careful troubleshooting. In this…
MySQL to Galera Cluster Migration, Deadlock, Back to basics
This post is a lab experiment learning from migration to the Percona Xtradb Cluster (Galera) and a very unexpected DEADLOCK scenario which took me back to basics. (root@localhost) [test]>insert into…
Debugging Percona Xtradb (Galera) Cluster node startup / SST errors
A Percona Xtradb (Galera) Cluster node may fail to join it due to many possible mistakes causing SST to fail. It could be a configuration item or purely setup requirement. In this article we will be troubleshooting step by step the SST issues faced.
2 responses to “Debugging Percona Xtradb (Galera) Cluster node startup / SST errors”
Another important one – in case the server has multiple IPs and wsrep_sst_receive_address is set to AUTO it may use the wrong one. For instance in a test configuration with Vagrant / OVM you may have two IP address, one internal on the 10.x.x.x range and other on 192.x.x.x and PXC may use the 10.x.x.x rather than the desired 192.x.x.x address.
In this case SST will fail with a message like:
150921 14:09:40 [ERROR] WSREP: gcs/src/gcs_group.cpp:long int gcs_group_handle_join_msg(gcs_group_t*, const gcs_recv_msg_t*)():717: Will never receive state. Need to abort.
Thanks for the update Nik.