# mysql service Not starting ( Percona xtradb cluster configured )

**URL:** <https://forums.percona.com/t/mysql-service-not-starting-percona-xtradb-cluster-configured/4628>\
**Category:** General Questions\
**Created:** [December 23, 2015, 5:24am UTC](https://forums.percona.com/t/mysql-service-not-starting-percona-xtradb-cluster-configured/4628 "2015-12-23T05:24:34Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![rameshit](https://avatars.discourse-cdn.com/v4/letter/r/97f17d/32.png) [@rameshit](https://forums.percona.com/u/rameshit)\
**Post date:** [December 23, 2015, 5:24am UTC](https://forums.percona.com/t/mysql-service-not-starting-percona-xtradb-cluster-configured/4628/1 "2015-12-23T05:24:34Z")

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hi all,

we are using percona xtradb cluster on centos ,  
we are configured 4 nodes now 2nd and 3rd node is stopped.  
i’m not able to restart the mysql service. while start the mysql service facing the following error message.

#service mysql status  
ERROR! MySQL (Percona XtraDB Cluster) is not running, but lock file (/var/lock/subsys/mysql) exists

#service mysql start  
ERROR! MySQL (Percona XtraDB Cluster) is not running, but lock file (/var/lock/subsys/mysql) exists  
Starting MySQL (Percona XtraDB Cluster)…State transfer in progress, setting sleep higher  
… … ERROR! The server quit without updating PID file (/var/lib/mysql/p2.hostroyale.com.pid).  
ERROR! MySQL (Percona XtraDB Cluster) server startup failed!

i’m already cleared lock and log files please anybody help me…

thanks

ramesh