This has been uploaded to the cosmic unapproved queue where it is
awaiting SRU review:
https://launchpad.net/ubuntu/cosmic/+queue?queue_state=1&queue_text
=python-oslo.cache
** Description changed:
nova conductor running on a rhel8 host inside f28 based containers hits the
following error:
2019-01-17 13:59:37.049 46 DEBUG oslo_concurrency.lockutils
[req-284f3071-8eee-4dcb-903c-838f2e024b48 40ca1490773f49f791d3a834af3702c8
8671bdf05abf48f58a9bdcdb0ef4b740 - default default] Lock
"b051d003-482d-4cb7-810c-8d256e6c879e" acquired by
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
:: waited 0.000s inner
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:327
2019-01-17 13:59:37.050 46 DEBUG oslo_concurrency.lockutils
[req-284f3071-8eee-4dcb-903c-838f2e024b48 40ca1490773f49f791d3a834af3702c8
8671bdf05abf48f58a9bdcdb0ef4b740 - default default] Lock
"b051d003-482d-4cb7-810c-8d256e6c879e" released by
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
:: held 0.002s inner
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:339
2019-01-17 13:59:37.060 46 DEBUG oslo_db.sqlalchemy.engines
[req-284f3071-8eee-4dcb-903c-838f2e024b48 40ca1490773f49f791d3a834af3702c8
8671bdf05abf48f58a9bdcdb0ef4b740 - default default] MySQL server mode set to
STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,TRADITIONAL,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
_check_effective_sql_mode
/usr/lib/python3.6/site-packages/oslo_db/sqlalchemy/engines.py:307
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server
[req-284f3071-8eee-4dcb-903c-838f2e024b48 40ca1490773f49f791d3a834af3702c8
8671bdf05abf48f58a9bdcdb0ef4b740 - default default] Exception during message
handling: TypeError: object() takes no parameters
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server Traceback (most
recent call last):
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server File
"/usr/lib/python3.6/site-packages/oslo_cache/_memcache_pool.py", line 163, in
_get
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server conn =
self.queue.pop().connection
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server IndexError: pop
from an empty deque
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server During handling of
the above exception, another exception occurred:
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server Traceback (most
recent call last):
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server File
"/usr/lib/python3.6/site-packages/oslo_messaging/rpc/server.py", line 166, in
_process_incoming
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server res =
self.dispatcher.dispatch(message)
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server File
"/usr/lib/python3.6/site-packages/oslo_messaging/rpc/dispatcher.py", line 265,
in dispatch
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server return
self._do_dispatch(endpoint, method, ctxt, args)
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server File
"/usr/lib/python3.6/site-packages/oslo_messaging/rpc/dispatcher.py", line 194,
in _do_dispatch
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server result =
func(ctxt, **new_args)
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server File
"/usr/lib/python3.6/site-packages/nova/conductor/manager.py", line 1303, in
schedule_and_build_instances
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server
instance.create()
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server File
"/usr/lib/python3.6/site-packages/oslo_versionedobjects/base.py", line 226, in
wrapper
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server return
fn(self, *args, **kwargs)
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server File
"/usr/lib/python3.6/site-packages/nova/objects/instance.py", line 607, in create
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server
self._load_ec2_ids()
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server File
"/usr/lib/python3.6/site-packages/nova/objects/instance.py", line 983, in
_load_ec2_ids
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server self.ec2_ids =
objects.EC2Ids.get_by_instance(self._context, self)
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server File
"/usr/lib/python3.6/site-packages/oslo_versionedobjects/base.py", line 184, in
wrapper
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server result =
fn(cls, context, *args, **kwargs)
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server File
"/usr/lib/python3.6/site-packages/nova/objects/ec2.py", line 216, in
get_by_instance
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server ec2_ids =
cls._get_ec2_ids(context, instance)
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server File
"/usr/lib/python3.6/site-packages/nova/objects/ec2.py", line 200, in
_get_ec2_ids
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server
ec2_ids['instance_id'] = ec2utils.id_to_ec2_inst_id(instance.uuid)
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server File
"/usr/lib/python3.6/site-packages/nova/api/ec2/ec2utils.py", line 188, in
id_to_ec2_inst_id
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server int_id =
get_int_id_from_instance_uuid(ctxt, instance_id)
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server File
"/usr/lib/python3.6/site-packages/nova/api/ec2/ec2utils.py", line 47, in
memoizer
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server value =
_CACHE.get(key)
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server File
"/usr/lib/python3.6/site-packages/nova/cache_utils.py", line 107, in get
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server value =
self.region.get(key)
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server File
"/usr/lib/python3.6/site-packages/dogpile/cache/region.py", line 645, in get
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server value =
self.backend.get(key)
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server File
"/usr/lib/python3.6/site-packages/dogpile/cache/backends/memcached.py", line
161, in get
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server value =
self.client.get(key)
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server File
"/usr/lib/python3.6/site-packages/oslo_cache/backends/memcache_pool.py", line
31, in _run_method
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server with
self.client_pool.acquire() as client:
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server File
"/usr/lib64/python3.6/contextlib.py", line 81, in __enter__
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server return
next(self.gen)
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server File
"/usr/lib/python3.6/site-packages/oslo_cache/_memcache_pool.py", line 128, in
acquire
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server conn =
self.get(timeout=self._connection_get_timeout)
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server File
"/usr/lib/python3.6/site-packages/eventlet/queue.py", line 303, in get
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server return
self._get()
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server File
"/usr/lib/python3.6/site-packages/oslo_cache/_memcache_pool.py", line 214, in
_get
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server conn =
ConnectionPool._get(self)
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server File
"/usr/lib/python3.6/site-packages/oslo_cache/_memcache_pool.py", line 165, in
_get
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server conn =
self._create_connection()
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server File
"/usr/lib/python3.6/site-packages/oslo_cache/_memcache_pool.py", line 206, in
_create_connection
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server return
_MemcacheClient(self.urls, **self._arguments)
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server TypeError:
object() takes no parameters
2019-01-17 13:59:37.096 46 ERROR oslo_messaging.rpc.server
nova.conf has:
()[nova@standalone /]$ grep -v ^# /etc/nova/nova.conf |grep '[a-zA-Z]' |grep
-i mem
backend=oslo_cache.memcache_pool
memcache_servers=192.168.24.2:11211
memcached_servers=192.168.24.2:11211
memcache seems to be up:
[root@standalone ~]# podman top memcached
USER PID PPID %CPU ELAPSED TTY TIME COMMAND
- memcached 1 0 0.000 2h2m27.45050385s ? 0s dumb-init
--single-child -- /bin/bash -c source /etc/sysconfig/memcached;
/usr/bin/memcached -p ${PORT} -u ${USER} -m ${CACHESIZE} -c ${MAXCONN} $OPTIONS
- memcached 8 1 0.000 2h2m27.450722828s ? 0s /bin/bash
-c source /etc/sysconfig/memcached; /usr/bin/memcached -p ${PORT} -u ${USER} -m
${CACHESIZE} -c ${MAXCONN} $OPTIONS
- memcached 9 8 0.000 2h2m27.450781466s ? 0s
/usr/bin/memcached -p 11211 -u memcached -m 11970 -c 8192 -v -l 192.168.24.2 -U
0 -X -t 8 >> /var/log/memcached.log 2>&1
+ memcached 1 0 0.000 2h2m27.45050385s ? 0s dumb-init
--single-child -- /bin/bash -c source /etc/sysconfig/memcached;
/usr/bin/memcached -p ${PORT} -u ${USER} -m ${CACHESIZE} -c ${MAXCONN} $OPTIONS
+ memcached 8 1 0.000 2h2m27.450722828s ? 0s /bin/bash
-c source /etc/sysconfig/memcached; /usr/bin/memcached -p ${PORT} -u ${USER} -m
${CACHESIZE} -c ${MAXCONN} $OPTIONS
+ memcached 9 8 0.000 2h2m27.450781466s ? 0s
/usr/bin/memcached -p 11211 -u memcached -m 11970 -c 8192 -v -l 192.168.24.2 -U
0 -X -t 8 >> /var/log/memcached.log 2>&1
Workaround:
disable caching in nova
crudini --set /var/lib/config-data/puppet-generated/nova/etc/nova/nova.conf
cache enabled false
podman restart nova_conductor
Versions inside the f28 nova-conductor container:
python-oslo-versionedobjects-lang-1.34.1-0.20181128123056.50474ad.fc28.noarch
python3-oslo-config-6.7.0-0.20181108120643.64e020a.fc28.noarch
python3-oslo-cache-1.32.0-0.20190108083242.eb68d73.fc28.noarch
python3-oslo-versionedobjects-1.34.1-0.20181128123056.50474ad.fc28.noarch
python-oslo-middleware-lang-3.37.0-0.20181211135004.a609e68.fc28.noarch
puppet-oslo-14.2.0-0.20190111032249.b937844.fc28.noarch
python3-oslo-middleware-3.37.0-0.20181211135004.a609e68.fc28.noarch
python3-oslo-service-1.34.0-0.20190114140259.d987a4a.fc28.noarch
python3-oslo-policy-1.44.0-0.20190108082943.c9ea8f7.fc28.noarch
python-oslo-policy-lang-1.44.0-0.20190108082943.c9ea8f7.fc28.noarch
python-oslo-concurrency-lang-3.29.0-0.20181128184857.0767ddf.fc28.noarch
python3-oslo-utils-3.39.0-0.20190110184625.3823707.fc28.noarch
python3-oslo-vmware-2.32.1-0.20181126101324.04f82ae.fc28.noarch
python-oslo-log-lang-3.42.2-0.20190114115634.1babd44.fc28.noarch
python3-oslo-rootwrap-5.15.1-0.20181226111925.27f2314.fc28.noarch
python3-oslo-context-2.22.0-0.20190114134914.f65408d.fc28.noarch
python3-oslo-privsep-1.30.1-0.20181127103633.9391cbf.fc28.noarch
python-oslo-utils-lang-3.39.0-0.20190110184625.3823707.fc28.noarch
python-oslo-db-lang-4.43.0-0.20190108081838.a6d2cc5.fc28.noarch
python3-memcached-1.58-5.fc29.noarch
python-oslo-cache-lang-1.32.0-0.20190108083242.eb68d73.fc28.noarch
python3-oslo-i18n-3.23.0-0.20190111201133.a5fde9a.fc28.noarch
python3-oslo-concurrency-3.29.0-0.20181128184857.0767ddf.fc28.noarch
python3-oslo-db-4.43.0-0.20190108081838.a6d2cc5.fc28.noarch
python3-oslo-reports-1.29.1-0.20181126102912.dde49a4.fc28.noarch
python-oslo-i18n-lang-3.23.0-0.20190111201133.a5fde9a.fc28.noarch
python3-oslo-messaging-9.3.0-0.20190114135848.13fa4f5.fc28.noarch
python3-oslo-serialization-2.28.1-0.20181001122254.0371c1d.fc28.noarch
python-oslo-vmware-lang-2.32.1-0.20181126101324.04f82ae.fc28.noarch
python-oslo-privsep-lang-1.30.1-0.20181127103633.9391cbf.fc28.noarch
python3-oslo-log-3.42.2-0.20190114115634.1babd44.fc28.noarch
puppet-memcached-3.3.0-0.20180803162752.e517b44.fc28.noarch
+
+
+ ------------------------------------------------
+
+ Ubuntu SRU details
+ ------------------
+
+ [Impact]
+ See description above.
+
+ [Test Case]
+
+ [Regression Potential]
+ The regression potential is low. This is a minimal fix that has successfully
been reviewed upstream and passed all upstream gate tests. It has already
landed in upstream master branch and Ubuntu Disco and received 3 +1's and zuul
tests +1 on stable/rocky gerrit reviews.
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https://bugs.launchpad.net/bugs/1812935
Title:
oslo cache mempool issues with python3
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