Public bug reported:
The /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
job that runs weekly appears to hang and never complets, slowly building up the
number of hanging processes
user@archive:~$ ps -ef | grep check-new
root 1618 1 0 Feb26 ? 00:00:00 /usr/bin/python3
/usr/lib/ubuntu-release-upgrader/check-new-release -q
root 3489 1 0 Jul09 ? 00:00:00 /usr/bin/python3
/usr/lib/ubuntu-release-upgrader/check-new-release -q
root 5951 1 0 Mar19 ? 00:00:00 /usr/bin/python3
/usr/lib/ubuntu-release-upgrader/check-new-release -q
root 14385 1 0 Apr02 ? 00:00:00 /usr/bin/python3
/usr/lib/ubuntu-release-upgrader/check-new-release -q
root 14490 1 0 Jul23 ? 00:00:00 /usr/bin/python3
/usr/lib/ubuntu-release-upgrader/check-new-release -q
root 15157 1 0 Apr30 ? 00:00:00 /usr/bin/python3
/usr/lib/ubuntu-release-upgrader/check-new-release -q
root 17853 1 0 Jun04 ? 00:00:00 /usr/bin/python3
/usr/lib/ubuntu-release-upgrader/check-new-release -q
root 21845 1 0 Jun11 ? 00:00:00 /usr/bin/python3
/usr/lib/ubuntu-release-upgrader/check-new-release -q
root 22240 1 0 May21 ? 00:00:00 /usr/bin/python3
/usr/lib/ubuntu-release-upgrader/check-new-release -q
root 22607 1 0 Jul02 ? 00:00:00 /usr/bin/python3
/usr/lib/ubuntu-release-upgrader/check-new-release -q
root 23452 1 0 Apr16 ? 00:00:00 /usr/bin/python3
/usr/lib/ubuntu-release-upgrader/check-new-release -q
root 27171 1 0 Feb19 ? 00:00:00 /usr/bin/python3
/usr/lib/ubuntu-release-upgrader/check-new-release -q
root 28447 1 0 Jun18 ? 00:00:00 /usr/bin/python3
/usr/lib/ubuntu-release-upgrader/check-new-release -q
root 29531 1 0 Mar05 ? 00:00:00 /usr/bin/python3
/usr/lib/ubuntu-release-upgrader/check-new-release -q
root 30531 1 0 Jun25 ? 00:00:00 /usr/bin/python3
/usr/lib/ubuntu-release-upgrader/check-new-release -q
root 31763 1 0 May14 ? 00:00:00 /usr/bin/python3
/usr/lib/ubuntu-release-upgrader/check-new-release -q
root 32360 1 0 May07 ? 00:00:00 /usr/bin/python3
/usr/lib/ubuntu-release-upgrader/check-new-release -q
user@archive:~$ sudo strace -p 32360
Process 32360 attached
futex(0x27b0fd0, FUTEX_WAIT_PRIVATE, 0, NULL
Running Trusty
user@archive:~$ lsb_release -d
Description: Ubuntu 14.04.5 LTS
user@archive:~$ dpkg -l | grep ubuntu-re
ii ubuntu-release-upgrader-core 1:0.220.9 all
manage release upgrades
user@archive:~$ apt-cache policy ubuntu-release-upgrader-core
ubuntu-release-upgrader-core:
Installed: 1:0.220.9
Candidate: 1:0.220.9
Version table:
*** 1:0.220.9 0
500 http://ca.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64
Packages
100 /var/lib/dpkg/status
1:0.220.2 0
500 http://ca.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
Any assistance in resolving these hanging processes that grow for no apparent
reason.
I could simply disable the cron job, but i am trying to get to the root of the
issues and resolve it.
Expected behaviour:
The script should terminate and close the process.
what happened:
the script hang and runs in background forever.
** Affects: ubuntu-release-upgrader (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1710296
Title:
script hangs and never finishes
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