[openstack-dev] [nova] nova-network stuck at get semaphores lock when startup

Alex Xu xuhj at linux.vnet.ibm.com
Thu Aug 7 14:16:39 UTC 2014


Oops, thanks

On 2014年08月07日 22:08, Ben Nemec wrote:
> Unfortunately this is a known issue.  We're working on a fix:
> https://bugs.launchpad.net/oslo/+bug/1327946
>
> On 08/07/2014 03:57 AM, Alex Xu wrote:
>> When I startup nova-network, it stuck at trying get lock for ebtables.
>>
>> @utils.synchronized('ebtables', external=True)
>> def ensure_ebtables_rules(rules, table='filter'):
>>       .....
>>
>> Checking the code found that invoke utils.synchronized without parameter
>> lock_path, the code will try to use
>> posix semaphore.
>>
>> But posix semaphore won't release even the process crashed. Should we
>> fix it? I saw a lot of call for synchronized
>> without lock_path.
>>
>> Thanks
>> Alex
>>
>>
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>
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