Hi
I have 6 nodes of Percona XtraDB Cluster with version
Server version: 5.6.19-67.0-56 Percona XtraDB Cluster (GPL), Release 25.6, wsrep_25.6.r4111
i noticed that there is no cached threads
| Threads_cached | 0 |
| Threads_connected | 1366 |
| Threads_created | 3916 |
| Threads_running | 1
in config thread_cache_size = 1024