I attach the lttng-sessiond -vvv output,John
On Friday, April 26, 2019, 9:38:36 p.m. EDT, whalajam--- via lttng-dev
<[email protected]> wrote:
Hi,I have one docker container on which I installed LTTng version 2.10.I use
the same Docker container to build and run the application. The problem I have
is that there are no traces in the path specified when doing "lttng create".
"lttng view"fails complaining about files not found, the trace directories are
sometimes added to the path but the /root/lttng../../../channel0_* files are
empty.=C2=A0I've followed the installation instructions
from=C2=A0http://frederic-wou.net/lttng/and docs
on=C2=A0https://lttng.org/docs/v2.10/=C2=A0These are the commands: "lttng
enable -u a:b", "lttng start", <excercise-the-tracepoints>,"lttng stop" and
"lttng view". lttng-consumerd is running. Running 'lttng-sessiond --vvv'
returns DEBUG info and an error about server already runningWhat could be the
reason for the failure, how can I debug it?John
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# lttng-sessiond -vvv
DEBUG1 - 22:36:39.908428600 [23511/23511]: [sessiond configuration]
DEBUG1 - 22:36:39.908544400 [23511/23511]: verbose: 3
DEBUG1 - 22:36:39.908553000 [23511/23511]: verbose consumer: 0
DEBUG1 - 22:36:39.908560800 [23511/23511]: quiet mode:
False
DEBUG1 - 22:36:39.908568000 [23511/23511]: agent_tcp_port:
[5345, 5354]
DEBUG1 - 22:36:39.908575400 [23511/23511]: application socket timeout: 5
DEBUG1 - 22:36:39.908583000 [23511/23511]: no-kernel:
False
DEBUG1 - 22:36:39.908591600 [23511/23511]: background:
False
DEBUG1 - 22:36:39.908599200 [23511/23511]: daemonize:
False
DEBUG1 - 22:36:39.908606700 [23511/23511]: signal parent on start:
False
DEBUG1 - 22:36:39.908613700 [23511/23511]: tracing group name:
tracing
DEBUG1 - 22:36:39.908621200 [23511/23511]: kmod_probe_list:
None
DEBUG1 - 22:36:39.908628700 [23511/23511]: kmod_extra_probe_list:
None
DEBUG1 - 22:36:39.908635900 [23511/23511]: rundir:
/var/run/lttng
DEBUG1 - 22:36:39.908643300 [23511/23511]: application socket path:
/var/run/lttng/lttng-ust-sock-7
DEBUG1 - 22:36:39.908651000 [23511/23511]: client socket path:
/var/run/lttng/client-lttng-sessiond
DEBUG1 - 22:36:39.908658400 [23511/23511]: wait shm path:
/lttng-ust-wait-7
DEBUG1 - 22:36:39.908665400 [23511/23511]: health socket path:
/var/run/lttng/sessiond-health
DEBUG1 - 22:36:39.908672900 [23511/23511]: LTTNG_UST_CLOCK_PLUGIN:
None
DEBUG1 - 22:36:39.908680000 [23511/23511]: pid file path:
/var/run/lttng/lttng-sessiond.pid
DEBUG1 - 22:36:39.908687300 [23511/23511]: lock file path:
/var/run/lttng/lttng-sessiond.lck
DEBUG1 - 22:36:39.908694400 [23511/23511]: session load path:
None
DEBUG1 - 22:36:39.908701700 [23511/23511]: agent port file path:
/var/run/lttng/agent.port
DEBUG1 - 22:36:39.908712100 [23511/23511]: consumerd32 path:
/var/run/lttng/ustconsumerd32
DEBUG1 - 22:36:39.908719700 [23511/23511]: consumerd32 bin path:
Unknown
DEBUG1 - 22:36:39.908726700 [23511/23511]: consumerd32 lib dir:
Unknown
DEBUG1 - 22:36:39.908733600 [23511/23511]: consumerd32 err unix sock
path:/var/run/lttng/ustconsumerd32/error
DEBUG1 - 22:36:39.908740900 [23511/23511]: consumerd32 cmd unix sock
path:/var/run/lttng/ustconsumerd32/command
DEBUG1 - 22:36:39.908748200 [23511/23511]: consumerd64 path:
/var/run/lttng/ustconsumerd64
DEBUG1 - 22:36:39.908755300 [23511/23511]: consumerd64 bin path:
/usr/lib64/lttng/libexec/lttng-consumerd
DEBUG1 - 22:36:39.908762700 [23511/23511]: consumerd64 lib dir:
/usr/lib64
DEBUG1 - 22:36:39.908772500 [23511/23511]: consumerd64 err unix sock
path:/var/run/lttng/ustconsumerd64/error
DEBUG1 - 22:36:39.908784500 [23511/23511]: consumerd64 cmd unix sock
path:/var/run/lttng/ustconsumerd64/command
DEBUG1 - 22:36:39.908791900 [23511/23511]: kconsumerd path:
/var/run/lttng/kconsumerd
DEBUG1 - 22:36:39.908799300 [23511/23511]: kconsumerd err unix sock path:
/var/run/lttng/kconsumerd/error
DEBUG1 - 22:36:39.908807200 [23511/23511]: kconsumerd cmd unix sock path:
/var/run/lttng/kconsumerd/command
DEBUG3 - 22:36:39.908815000 [23511/23511]: Creating LTTng run directory:
/var/run/lttng (in create_lttng_rundir() at main.c:5301)
Error: A session daemon is already running.
DEBUG1 - 22:36:39.908960400 [23511/23511]: Cleaning up options (in
sessiond_cleanup_options() at main.c:642)
DEBUG1 - 22:36:39.908973600 [23511/23511]: Destroying run_as worker (in
run_as_destroy_worker() at runas.c:710)
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