[Users] question about the openserctl ping command

Hello all, I am using the openserct ping command to periodically check whether openser is working properly (If there is a better way to do this, please let me know). My script looks like this: SIP_URI="sip:213.5.xxx.xxx:5060" OPENSER_DIR=/root/openser TMP_FILE=/tmp/openser_ping.result $OPENSER_DIR/bin/openserctl ping $SIP_URI > $TMP_FILE 2>&1 Sometimes in TMP_FILE I see the following type of message: mkfifo: cannot create fifo `/tmp/openser_receiver_26907': File exists anaconda-ks.cfg install.log install.log.syslog mbox openser ERROR: error opening read fifo /tmp/openser_receiver_26907 At the same time openser seems to be working fine, however because the script gets this error, it restarts the server (the idea is that if ping fails then restart). Any idea why this is happening? What is the best way to make sure openser is working properly? I am assuming that a succesful ping only proves that one child is working properly. Thank you for any help George Disclaimer The information in this e-mail and any attachments is confidential. It is intended solely for the attention and use of the named addressee(s). If you are not the intended recipient, or person responsible for delivering this information to the intended recipient, please notify the sender immediately. Unless you are the intended recipient or his/her representative you are not authorized to, and must not, read, copy, distribute, use or retain this message or any part of it. E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses.