** Description changed: [Impact] User tried a ceph storage node intentionally degraded, as a failure test case, on all the cases we hit - the following exception, + the following exception, 2014-07-07 04:07:01.121 1573 TRACE nova.compute.manager [instance: 63386638-58ac-4a2d-ae3a-20ecc137c5ad] VolumeNotCreated: Volume 4b6611e2 -0e6b-44ec-8066-f8ac164d6a9c did not finish being created even after we waited 197 seconds or 180 attempts. - 2014-07-07 04:07:01.121 1573 TRACE nova.compute.manager [instance: 63386638-58ac-4a2d-ae3a-20ecc137c5ad] + 2014-07-07 04:07:01.121 1573 TRACE nova.compute.manager [instance: 63386638-58ac-4a2d-ae3a-20ecc137c5ad] 2014-07-07 04:07:01.750 1573 ERROR oslo.messaging.rpc.dispatcher [-] Exception during message handling: Block Device Mapping is Invalid. + This change adds two configuration options: - This change adds two configuration options: - - a) `block_device_allocate_retries` which can be set in nova.conf - by the user to configure the number of block device mapping retries. - It defaults to 60 and replaces the max_tries argument in the above method. + a) `block_device_allocate_retries` which can be set in nova.conf + by the user to configure the number of block device mapping retries. + It defaults to 60 and replaces the max_tries argument in the above method. - b) `block_device_allocate_retries_interval` which allows the user - to specify the time interval between consecutive retries. It defaults to 3 - and replaces wait_between argument in the above method. + b) `block_device_allocate_retries_interval` which allows the user + to specify the time interval between consecutive retries. It defaults to 3 + and replaces wait_between argument in the above method. + [Regression Potential] - [Regression Potential] + * This change introduces two new nova.conf directives, both with + default values that shouldn't broken previous deployments. - * This change introduces two new nova.conf directives, both with - default values that shouldn't broken previous deployments. + [Test Case] + + - Run sysbench on the ceph node + + sysbench --test=fileio --file-total-size=150G --file-test-mode=rndrw - + init-rng=on --max-time=300 --max-requests=0 run + + - In parallel try to create a new instance with a ceph backed volume. + + - Without this patch the error "did not finish being created even after + we waited 197 seconds or 180 attempts." is raised. + + - With this patch and the option block_device_allocate_retries set to a + higher value, the exception is not raised. [Other Info] - - Please refer upstream commit: + + Please refer upstream commit: https://git.openstack.org/cgit/openstack/nova/commit/?id=66721eb2c0f53fc4260b2f0aa9a3811da0f7ddbd
-- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to nova in Ubuntu. https://bugs.launchpad.net/bugs/1376927 Title: [SRU] Configurable block device mapping timeout in compute To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nova/+bug/1376927/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
