When we are using friendly names for multipath the multipaths are not getting flushed, which may lead to data loss on slow connections and multipath entries with no actual paths. This happens in both iSCSI and FC connections, and it is due to the flush being requested on the WWN instead of the actual name of the device. So when we are not using friendly names the WWN and the device name are the same and our call to multipath -f will successfully flush remaining data, but when we are using friendly names they will not match, and the call to multipath -f will silently fail (return code 0) and the flush will not actually go through. When the flush doesn't happen, if there is remaining data, then the multipath will stay once the individual paths have been removed. Closes-Bug: #1663925 Change-Id: Ib93d945a5b5fca57bcac4e176d62d1412b95f2da
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Team and repository tags
OpenStack Cinder brick library for managing local volume attaches
- Discovery of volumes being attached to a host for many transport protocols.
- Removal of volumes from a host.
Hacking on brick requires python-gdbm (for Debian derived distributions), Python 2.7 and Python 3.4. A recent tox is required, as is a recent virtualenv (13.1.0 or newer).
If "tox -e py34" fails with the error "db type could not be determined", remove the .testrepository/ directory and then run "tox -e py34".
- For any other information, refer to the developer documents:
- OR refer to the parent project, Cinder: