Bug #9953
closed
Dynflow comsumes CPU with no tasks executing
Description
On my RHEL6 based VM running the latest nightly build of Katello I noticed that the dynflow process was consuming lots of CPU:
top - 14:25:03 up 3:56, 1 user, load average: 1.09, 1.12, 1.28
Tasks: 129 total, 2 running, 127 sleeping, 0 stopped, 0 zombie
Cpu(s): 84.2%us, 15.8%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi, 0.0%si,
Mem: 7865288k total, 7257996k used, 607292k free, 201936k buffers
Swap: 2097144k total, 0k used, 2097144k free, 4675568k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2466 foreman 20 0 485m 104m 1144 R 97.5 1.4 24:44.50 ruby
1883 tomcat 20 0 2968m 266m 12m S 1.0 3.5 0:44.53 java
...running strace on the process yields pages and pages of:
stat("/usr/share/foreman/tmp/pids/dynflow_executor.pid", {st_mode=S_IFREG|0644, st_size=5, ...}) = 0
open("/usr/share/foreman/tmp/pids/dynflow_executor.pid", O_RDONLY) = 5
fstat(5, {st_mode=S_IFREG|0644, st_size=5, ...}) = 0
fstat(5, {st_mode=S_IFREG|0644, st_size=5, ...}) = 0
ioctl(5, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fffc1de3b50) = -1 ENOTTY (Inappropriate ioctl for device)
read(5, "2566\n", 8192) = 5
close(5) = 0
kill(2566, SIG_0) = 0
stat("/usr/share/foreman/tmp/pids/dynflow_executor.pid", {st_mode=S_IFREG|0644, st_size=5, ...}) = 0
open("/usr/share/foreman/tmp/pids/dynflow_executor.pid", O_RDONLY) = 5
fstat(5, {st_mode=S_IFREG|0644, st_size=5, ...}) = 0
fstat(5, {st_mode=S_IFREG|0644, st_size=5, ...}) = 0
ioctl(5, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fffc1de3b50) = -1 ENOTTY (Inappropriate ioctl for device)
read(5, "2566\n", 8192) = 5
close(5) = 0
kill(2566, SIG_0) = 0
stat("/usr/share/foreman/tmp/pids/dynflow_executor.pid", {st_mode=S_IFREG|0644, st_size=5, ...}) = 0
...
Updated by Eric Helms almost 10 years ago
- Status changed from Closed to New
- Triaged changed from No to Yes
Updated by Eric Helms almost 10 years ago
- Related to Bug #9954: Dynflow comsumes CPU with no tasks executing added
Updated by Eric Helms almost 10 years ago
- Related to deleted (Bug #9954: Dynflow comsumes CPU with no tasks executing)
Updated by Eric Helms almost 10 years ago
- Has duplicate Bug #9954: Dynflow comsumes CPU with no tasks executing added
Updated by Ivan Necas almost 10 years ago
Any pointers on the reproducibility of this issue? Was this observed frequently, both rhel6 and rhel7?
There was no major change on the dynflow/foremant-tasks for this behavior. I'm suspecting
the qpid connections to cause some issues recently.
Is the machine with reproducer available? Also, I would be interested into /usr/share/foreman/tmp/pids/dynflow_executor.output.
Updated by Mike McCune almost 10 years ago
I forgot to mark it closed as a dupe of #9954, apologies
I don't have RHEL7 setup so I can't state if it is occurring there.
I have the machine available if you wish to access it, you can also get a copy of the dynflow executor here:
https://mmccune.fedorapeople.org/scratch/dynflow_executor.tar.gz
Updated by Ivan Necas almost 10 years ago
Seems like the issue with qpid connection and core-dumping
Updated by Ivan Necas almost 10 years ago
I wonder if that might be connected to the other qpid issues we had in candlepin and pulp
Updated by Eric Helms about 9 years ago
- Translation missing: en.field_release set to 114
Updated by John Mitsch over 5 years ago
- Status changed from New to Rejected
- Target version deleted (
Katello Backlog)
Thanks for reporting this issue. This issue was created over 4 years ago and hasn't seen an update in 1 year. We are closing this in an effort to keep a realistic backlog. Please open up a new issue that includes a link to this issue if you feel this still needs to be addressed. We can then triage the new issue and reassess.