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I manage a Percona XtraDB 3-node cluster. Recently the MySQL datadir of one of the nodes (not the one from which the cluster has been bootstrapped) started being filled up with gcache.page.00nnnn files. This is not happening in the other two nodes.

What causes the creation of such a large number of Galera cache files?

I stopped the daemon, wiped out the datadir and forced a SST on the node, but that's not really a solution -- I want to find the cause for this behaviour.

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