5ab042143d
When booting instances passing in block-device and increasing the
volume size, instances can go in to error state if the volume takes
longer to create than the hard code value (max_tries(180)/wait_between(1))
set in nova/compute/manager.py
def _await_block_device_map_created(self,
context,
vol_id,
max_tries=180,
wait_between=1):
To fix this, max_retries/wait_between should be made configurable.
Looking through the different releases, Grizzly was 30, Havana was
60 , IceHouse is 180.
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 180 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 1
and replaces wait_between argument in the above method.
The cherry-picked patch has been amended to set the default configuration
options to the same values that were previously hard-coded:
block_device_allocate_retries=180
block_device_allocate_retries_interval=1
DocImpact
Closes-Bug: #1332382
Change-Id: I16e4cd1a572bc5c2cd91fc94be85e72f576a8c26
(cherry picked from commit 66721eb2c0)
OpenStack Nova README
OpenStack Nova provides a cloud computing fabric controller, supporting a wide variety of virtualization technologies, including KVM, Xen, LXC, VMware, and more. In addition to its native API, it includes compatibility with the commonly encountered Amazon EC2 and S3 APIs.
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