Public bug reported:
release: Pike.
When a DVR router with centralized floating IPs is rescheduled from down l3
agent to another,
following traces are seen on the destination agent:
2019-02-21 14:55:59,150.150 24730 ERROR neutron.agent.linux.ip_lib [-] Failed
sending gratuitous ARP to 10.13.250.14 on qg-af0de258-a8 in namespace
snat-afe70a67-a007-4bcf-93ac-099aad63411c: Exit code: 2; Stdin: ; Stdout: ;
Stderr: bind: Cannot assign requested address
: ProcessExecutionError: Exit code: 2; Stdin: ; Stdout: ; Stderr: bind: Cannot
assign requested address
2019-02-21 14:55:59,150.150 24730 ERROR neutron.agent.linux.ip_lib Traceback
(most recent call last):
2019-02-21 14:55:59,150.150 24730 ERROR neutron.agent.linux.ip_lib File
"/usr/lib/python2.7/dist-packages/neutron/agent/linux/ip_lib.py", line 1097, in
_arping
2019-02-21 14:55:59,150.150 24730 ERROR neutron.agent.linux.ip_lib
ip_wrapper.netns.execute(arping_cmd, extra_ok_codes=[1])
2019-02-21 14:55:59,150.150 24730 ERROR neutron.agent.linux.ip_lib File
"/usr/lib/python2.7/dist-packages/neutron/agent/linux/ip_lib.py", line 916, in
execute
2019-02-21 14:55:59,150.150 24730 ERROR neutron.agent.linux.ip_lib
log_fail_as_error=log_fail_as_error, **kwargs)
2019-02-21 14:55:59,150.150 24730 ERROR neutron.agent.linux.ip_lib File
"/usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py", line 151, in
execute
2019-02-21 14:55:59,150.150 24730 ERROR neutron.agent.linux.ip_lib raise
ProcessExecutionError(msg, returncode=returncode)
2019-02-21 14:55:59,150.150 24730 ERROR neutron.agent.linux.ip_lib
ProcessExecutionError: Exit code: 2; Stdin: ; Stdout: ; Stderr: bind: Cannot
assign requested address
Earlier in logs following is seen:
2019-02-22 07:52:14,894.894 9528 DEBUG neutron.agent.linux.utils [-] Running
command (rootwrap daemon): ['ip', 'netns', 'exec',
'snat-afe70a67-a007-4bcf-93ac-099aad63411c', 'ip', '-4', 'addr', 'del',
'10.13.250.14/32', 'dev', 'qg-af0de258-a8'] execute_rootwrap_daemon
/usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py:108
2019-02-22 07:52:14,922.922 9528 DEBUG neutron.agent.linux.utils [-] Running
command (rootwrap daemon): ['ip', 'netns', 'exec',
'snat-afe70a67-a007-4bcf-93ac-099aad63411c', 'conntrack', '-D', '-d',
'10.13.250.14'] execute_rootwrap_daemon
/usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py:108
So centralized floating ip is deleted from gw device for some reason.
** Affects: neutron
Importance: Undecided
Assignee: Oleg Bondarev (obondarev)
Status: New
** Tags: l3-dvr-backlog
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https://bugs.launchpad.net/bugs/1817306
Title:
Failed gARP for floating IP in l3 agent logs
Status in neutron:
New
Bug description:
release: Pike.
When a DVR router with centralized floating IPs is rescheduled from down l3
agent to another,
following traces are seen on the destination agent:
2019-02-21 14:55:59,150.150 24730 ERROR neutron.agent.linux.ip_lib [-] Failed
sending gratuitous ARP to 10.13.250.14 on qg-af0de258-a8 in namespace
snat-afe70a67-a007-4bcf-93ac-099aad63411c: Exit code: 2; Stdin: ; Stdout: ;
Stderr: bind: Cannot assign requested address
: ProcessExecutionError: Exit code: 2; Stdin: ; Stdout: ; Stderr: bind:
Cannot assign requested address
2019-02-21 14:55:59,150.150 24730 ERROR neutron.agent.linux.ip_lib Traceback
(most recent call last):
2019-02-21 14:55:59,150.150 24730 ERROR neutron.agent.linux.ip_lib File
"/usr/lib/python2.7/dist-packages/neutron/agent/linux/ip_lib.py", line 1097, in
_arping
2019-02-21 14:55:59,150.150 24730 ERROR neutron.agent.linux.ip_lib
ip_wrapper.netns.execute(arping_cmd, extra_ok_codes=[1])
2019-02-21 14:55:59,150.150 24730 ERROR neutron.agent.linux.ip_lib File
"/usr/lib/python2.7/dist-packages/neutron/agent/linux/ip_lib.py", line 916, in
execute
2019-02-21 14:55:59,150.150 24730 ERROR neutron.agent.linux.ip_lib
log_fail_as_error=log_fail_as_error, **kwargs)
2019-02-21 14:55:59,150.150 24730 ERROR neutron.agent.linux.ip_lib File
"/usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py", line 151, in
execute
2019-02-21 14:55:59,150.150 24730 ERROR neutron.agent.linux.ip_lib raise
ProcessExecutionError(msg, returncode=returncode)
2019-02-21 14:55:59,150.150 24730 ERROR neutron.agent.linux.ip_lib
ProcessExecutionError: Exit code: 2; Stdin: ; Stdout: ; Stderr: bind: Cannot
assign requested address
Earlier in logs following is seen:
2019-02-22 07:52:14,894.894 9528 DEBUG neutron.agent.linux.utils [-] Running
command (rootwrap daemon): ['ip', 'netns', 'exec',
'snat-afe70a67-a007-4bcf-93ac-099aad63411c', 'ip', '-4', 'addr', 'del',
'10.13.250.14/32', 'dev', 'qg-af0de258-a8'] execute_rootwrap_daemon
/usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py:108
2019-02-22 07:52:14,922.922 9528 DEBUG neutron.agent.linux.utils [-] Running
command (rootwrap daemon): ['ip', 'netns', 'exec',
'snat-afe70a67-a007-4bcf-93ac-099aad63411c', 'conntrack', '-D', '-d',
'10.13.250.14'] execute_rootwrap_daemon
/usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py:108
So centralized floating ip is deleted from gw device for some reason.
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