show threads

Show the internal states and structures of threads.

Description Jump to heading #

The show threads command displays information about threads active in the load balancer process. It can be used to troubleshoot threading problems such as deadlocks.

Examples Jump to heading #

Below, we display information about threads:

nix
echo "show threads" | \
  sudo socat stdio tcp4-connect:127.0.0.1:9999

nix
echo "show threads" | \
  sudo socat stdio tcp4-connect:127.0.0.1:9999

output
text
   Thread 1 : id=0x7f4f8050c2c0 act=0 glob=0 wq=0 rq=0 tl=0 tlsz=0 rqsz=0
               stuck=0 prof=0 harmless=1 wantrdv=0
               cpu_ns: poll=1148558442 now=1148602754 diff=44312
               curr_task=0
* Thread 2 : id=0x7f4f7db29700 act=1 glob=0 wq=1 rq=0 tl=0 tlsz=0 rqsz=0
               stuck=0 prof=0 harmless=0 wantrdv=0
               cpu_ns: poll=1184724714 now=1184833816 diff=109102
               curr_task=0x7f4f780333a0 (task) calls=2 last=0
               fct=0x55f09c676b50(task_run_applet) ctx=0x7f4f7802e8c0(<CLI>)
               strm=0x7f4f7802a270 src=unix fe=GLOBAL be=GLOBAL dst=<CLI>
               rqf=c48202 rqa=0 rpf=80008000 rpa=0 sif=EST,200008 sib=EST,204018
               af=(nil),0 csf=0x7f4f78033450,8200
               ab=0x7f4f7802e8c0,9 csb=(nil),0
               cof=0x7f4f7802a090,1300:PASS(0x7f4f78033790)/RAW((nil))/unix_stream(18)
               cob=(nil),0:NONE((nil))/NONE((nil))/NONE(0)

output
text
   Thread 1 : id=0x7f4f8050c2c0 act=0 glob=0 wq=0 rq=0 tl=0 tlsz=0 rqsz=0
               stuck=0 prof=0 harmless=1 wantrdv=0
               cpu_ns: poll=1148558442 now=1148602754 diff=44312
               curr_task=0
* Thread 2 : id=0x7f4f7db29700 act=1 glob=0 wq=1 rq=0 tl=0 tlsz=0 rqsz=0
               stuck=0 prof=0 harmless=0 wantrdv=0
               cpu_ns: poll=1184724714 now=1184833816 diff=109102
               curr_task=0x7f4f780333a0 (task) calls=2 last=0
               fct=0x55f09c676b50(task_run_applet) ctx=0x7f4f7802e8c0(<CLI>)
               strm=0x7f4f7802a270 src=unix fe=GLOBAL be=GLOBAL dst=<CLI>
               rqf=c48202 rqa=0 rpf=80008000 rpa=0 sif=EST,200008 sib=EST,204018
               af=(nil),0 csf=0x7f4f78033450,8200
               ab=0x7f4f7802e8c0,9 csb=(nil),0
               cof=0x7f4f7802a090,1300:PASS(0x7f4f78033790)/RAW((nil))/unix_stream(18)
               cob=(nil),0:NONE((nil))/NONE((nil))/NONE(0)

See also Jump to heading #

• show pools