zmmailboxd_manager.pid and zmmailboxd.pid does not exist

[brainocide]

Hi,

Below is log from /var/log/zimbra.log

Aug 23 10:53:00 mbs1 zmmailboxdmgr[7515]: shutdown requested, sending TERM signal to 7516
Aug 23 10:53:00 mbs1 zmmailboxdmgr[15936]: waiting for manager process 7515 to die
Aug 23 10:53:12 mbs1 zmmailboxdmgr[7515]: mailboxd/JVM process exited (waitpid expected 7516 got 7516)
Aug 23 10:53:12 mbs1 zmmailboxdmgr[7515]: manager woke up from wait on mailboxd/JVM with pid 7516
Aug 23 10:53:12 mbs1 zmmailboxdmgr[15936]: manager process 7515 died, shutdown completed
Aug 23 10:54:04 mbs1 zmmailboxdmgr[16188]: status requested
Aug 23 10:54:04 mbs1 zmmailboxdmgr[16188]: file /opt/zimbra/log/zmmailboxd_manager.pid does not exist
Aug 23 10:54:04 mbs1 zmmailboxdmgr[16188]: assuming no other instance is running
Aug 23 10:54:04 mbs1 zmmailboxdmgr[16188]: file /opt/zimbra/log/zmmailboxd.pid does not exist
Aug 23 10:54:04 mbs1 zmmailboxdmgr[16188]: assuming no other instance is running
Aug 23 10:54:04 mbs1 zmmailboxdmgr[16188]: no manager process is running
Aug 23 10:55:05 mbs1 zmmailboxdmgr[19442]: status requested
Aug 23 10:55:05 mbs1 zmmailboxdmgr[19442]: file /opt/zimbra/log/zmmailboxd_manager.pid does not exist
Aug 23 10:55:05 mbs1 zmmailboxdmgr[19442]: assuming no other instance is running
Aug 23 10:55:05 mbs1 zmmailboxdmgr[19442]: file /opt/zimbra/log/zmmailboxd.pid does not exist
Aug 23 10:55:05 mbs1 zmmailboxdmgr[19442]: assuming no other instance is running
Aug 23 10:55:05 mbs1 zmmailboxdmgr[19442]: no manager process is running
Aug 23 10:55:05 mbs1 zmmailboxdmgr[19449]: start requested
Aug 23 10:55:05 mbs1 zmmailboxdmgr[19449]: checking if another instance of manager is already running
Aug 23 10:55:05 mbs1 zmmailboxdmgr[19449]: file /opt/zimbra/log/zmmailboxd_manager.pid does not exist
Aug 23 10:55:05 mbs1 zmmailboxdmgr[19449]: assuming no other instance is running
Aug 23 10:55:05 mbs1 zmmailboxdmgr[19449]: file /opt/zimbra/log/zmmailboxd.pid does not exist
Aug 23 10:55:05 mbs1 zmmailboxdmgr[19449]: assuming no other instance is running
Aug 23 10:55:05 mbs1 zmmailboxdmgr[19450]: wrote manager pid 19450 to /opt/zimbra/log/zmmailboxd_manager.pid
Aug 23 10:55:05 mbs1 zmmailboxdmgr[19451]: wrote java pid 19451 to /opt/zimbra/log/zmmailboxd_java.pid
Aug 23 10:55:05 mbs1 zmmailboxdmgr[19450]: manager started mailboxd/JVM with pid 19451

It's happend during reboot or zimbra service restart. But mailbox & zmmailboxdctl is running. Is it normal or got error?

Thanx