Public bug reported:
the https://bugs.launchpad.net/neutron/+bug/1870313 fix the code to use
threading to send grap, well the grap works, but it also introduced
another very seriously bug file descriptor leak!
I tested the train, ussuri branches, both can reproduce the bug, the
reproduce steps is simple, just create floating ip with --port option,
which trigger the l3-agent to configure ip address on qg- interface,
then the neutron-keepalived-state-change will send garp, AND there is
file named "anon_inode:[eventpoll]" left in /proc/<pid of neutron-
keepalived-state-change >/fd.
AS you can imagine, frequently create floating ip and delete floating
ip, what will happen in /proc/X/fd
this could also cause the memory leak in some cases, cause the process
neutron-keepalived-state-change consume huge memory like 10G+
** Affects: neutron
Importance: Undecided
Assignee: junbo (junbo)
Status: New
** Changed in: neutron
Assignee: (unassigned) => junbo (junbo)
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https://bugs.launchpad.net/bugs/1907411
Title:
neutron-keepalived-state-change file descriptor leak
Status in neutron:
New
Bug description:
the https://bugs.launchpad.net/neutron/+bug/1870313 fix the code to
use threading to send grap, well the grap works, but it also
introduced another very seriously bug file descriptor leak!
I tested the train, ussuri branches, both can reproduce the bug, the
reproduce steps is simple, just create floating ip with --port option,
which trigger the l3-agent to configure ip address on qg- interface,
then the neutron-keepalived-state-change will send garp, AND there is
file named "anon_inode:[eventpoll]" left in /proc/<pid of neutron-
keepalived-state-change >/fd.
AS you can imagine, frequently create floating ip and delete floating
ip, what will happen in /proc/X/fd
this could also cause the memory leak in some cases, cause the process
neutron-keepalived-state-change consume huge memory like 10G+
To manage notifications about this bug go to:
https://bugs.launchpad.net/neutron/+bug/1907411/+subscriptions
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