From mboxrd@z Thu Jan 1 00:00:00 1970 From: gajerashirish@gmail.com (shirish gajera) Date: Thu, 30 Apr 2015 09:23:08 -0700 Subject: [lttng-dev] Error while enabling multiple channel for same session Message-ID: Hi, I want to enable multiple(50) channel for the same session, below is my script doing the same. Single channel with the same script is working fine. But, when I tried to enable multiple channel for the same session it's giving me error. Here is what I found 1) I have 50 channel in my db files and it's failing at 13th channel create command, below is the log ...12 channel creation successful Spawning a session daemon Warning: Could not get lock file /var/run/lttng/lttng-sessiond.lck, another instance is running. Error: Session daemon died (exit status 1) Spawning a session daemon Warning: Could not get lock file /var/run/lttng/lttng-sessiond.lck, another instance is running. Error: Session daemon died (exit status 1) 1 failed! Let me know if question is not clear. my lttng script -------------------------------------------- lttng create -o /root/data/tracing --snapshot TEST while IFS=, read EVENTNAME CHANNELNAME BUFFERSIZE do lttng enable-channel --userspace --tracefile-size ${BUFFERSIZE}K --tracefile-count 1 --overwrite ${CHANNELNAME} lttng enable-event -u ${EVENTNAME} --loglevel ERR -c ${CHANNELNAME} lttng enable-event -u ${EVENTNAME} --loglevel CRIT -c ${CHANNELNAME} done < demo_lttngdb lttng start my demo_lttngdb file ------------------------------------------- channel1,channel1,65535 channel2*,channel2,4096 channel3*,channel3,4096 channel4*,channel4,4096 channel5*,channel5,4096 channel6*,channel6,4096 channel7*,channel7,4096 channel8*,channel8,4096 channel9*,channel9,8192 channel10*,channel10,4096 channel11*,channel11,4096 channel12*,channel12,4096 channel13*,channel13,4096 channel14*,channel14,4096 channel15*,channel15,4096 ............. ............. ............. channel48*,channel48,4096 -------------- next part -------------- An HTML attachment was scrubbed... URL: