rax-nova-agent does not drain the event queue, before starting
Bug #1765057 reported by
Dimitri John Ledkov
This bug affects 1 person
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| rax-nova-agent (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Bug Description
A single iteration of event processing is not sufficient to drain all of the events on firstboot provisioning in Xen based clouds.
Specifically, instead of receiving a list of 7 events, one might only receive 1 event at a time, spaced 1 or 2 seconds apart, until all initial events are processed.
To work around the fact that supervisor is not batching all events together, do the following:
* process events until there are none
* ensure that there were at least three iterations without any events
* then notify that daemon as ready, as no more early boot events are expected
* continue polling any interactive triggered events going forward
Revision history for this message
| Dimitri John Ledkov (xnox) wrote | #1 |
Download full text (3.3 KiB)
Revision history for this message
| Launchpad Janitor (janitor) wrote | #2 |
| Changed in rax-nova-agent (Ubuntu): | |
| status: | New → Fix Released |
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Tested on a self-created image:
2018-04-18 14:43:48,129 [INFO ] Skipping os.fork as directed by arguments
2018-04-18 14:43:48,129 [INFO ] Starting actions for novaagent.
2018-04-18 14:43:48,130 [INFO ] Checking for existence of /dev/xen/xenbus
2018-04-18 14:43:48,131 [INFO ] Provider: Rackspace
2018-04-18 14:43:48,144 [INFO ] Event: 77bc84f1-
2018-04-18 14:43:48,145 [INFO ] Returning {"message": "2.1.13", "returncode": "0"}
2018-04-18 14:43:49,148 [INFO ] Event: 5fd73e82-
2018-04-18 14:43:49,149 [INFO ] Returning {"message": "kmsactivate,
2018-04-18 14:43:50,151 [INFO ] Event: b0f171aa-
2018-04-18 14:43:50,153 [INFO ] Returning {"message": "", "returncode": "0"}
2018-04-18 14:43:51,155 [INFO ] Event: ce18fecb-
2018-04-18 14:43:51,156 [INFO ] Returning {"message": "63332560236465
2018-04-18 14:43:52,160 [INFO ] Event: 8a591e8d-
2018-04-18 14:43:52,201 [INFO ] Returning {"message": "", "returncode": "0"}
2018-04-18 14:43:53,204 [INFO ] Event: d9edad5f-
2018-04-18 14:43:53,205 [INFO ] Hostname: xnox-test-counter
2018-04-18 14:43:53,205 [INFO ] Backing up -> /etc/hostname (1524062633.
2018-04-18 14:43:53,212 [ERROR] Error using hostnamectl: b'Failed to create bus connection: No such file or directory\n'
2018-04-18 14:43:53,218 [INFO ] Interface BC764E20680D: {'label': 'private', 'broadcast': '10.209.95.255', 'ips': [{'ip': '10.209.64.42', 'netmask': '255.255.224.0', 'enabled': '1', 'gateway': None}], 'mac': 'BC:76:
2018-04-18 14:43:53,219 [INFO ] Interface BC764E206804: {'ip6s': [{'ip': '2001:4802:
2018-04-18 14:43:53,444 [INFO ] Returning {"message": "", "returncode": "0"}
2018-04-18 14:43:54,446 [INFO ] No event received
2018-04-18 14:43:55,448 [INFO ] No event received
2018-04-18 14:43:56,450 [INFO ] No event received
and
Apr 18 14:43:47 ubuntu systemd[1]: Starting Nova Agent for xenstore...
Apr 18 14:43:52 ubuntu passwd[729]: pam_unix(
Apr 18 14:43:57 xnox-test-counter systemd[1]: Started Nova Agent for xenstore.
Apr 18 14:43:57 xnox-test-counter systemd[1]: Starting Initial cloud-init job (pre-networking)...
Apr 18 14:43:58 xnox-test-counter cloud-init[763]: Cloud-init v. 18.2 running 'init-local' at Wed, 18 Apr 2018 14:43:58 +0000. Up 16.60 seconds.
Apr 18 14:43:58 xnox-...