WebMar 11, 2024 · > > > > As discussed in this thread, for active/passive, upon initiator > > failover, we used the RBD exclusive-lock feature to blacklist the old > > "active" iSCSI target gateway so that it cannot talk w/ the Ceph > > cluster before new writes are accepted on the new target gateway. WebTake an exclusive lock on the image. Raises. ImageBusy if a different client or cookie locked it ImageExists if the same client and cookie locked it. lock_get_owners (self) ¶ Iterate over the lock owners of an image. Returns. LockOwnerIterator. lock_release (self) ¶ Release a managed lock on the image that was previously acquired. lock_shared ...
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WebThe exclusive-lock feature must be enabled to enable persistent write log cache. The cache can be loaded only after the exclusive-lock is acquired. Exclusive-locks are enabled on newly created images by default unless overridden by the rbd_default_features configuration option or the --image-feature flag for the rbd create command. WebMar 10, 2024 · I can get during the new active target gateway was talking to rbd the old active target gateway cannot write because of the RBD exclusive-lock But after the new target gateway done the writes,if the old target gateway had some blocked io during the failover,cant it then get the lock and overwrite the new writes? almagre venue colorado springs
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WebCreate an rbd image with exclusive-lock feature rbd create disk02 --size 5120 --image-feature layering,exclusive-lock --image-format 2 # rbd info disk02 rbd image 'disk02': size 5120 MB in 1280 objects order 22 (4096 kB objects) block_name_prefix: rbd_data.10ae2ae8944a format: 2 features: layering, exclusive-lock flags: 2. Create … WebVersion-Release number of selected component (if applicable): any, ceph since release: Jewel "exclusive-lock" is enabled by default. How reproducible: very Steps to Reproduce: 1. create vm with ceph rbd disk image 2. virsh destroy vm 3. virsh start vm and put the vm under heavy disk write I/O Actual results: task jbd2/disk-8:171_blocked for more than 120 … Weblock add [--shared lock-tag] image-spec lock-id. Lock an image. The lock-id is an arbitrary name for the user’s convenience. By default, this is an exclusive lock, meaning it will fail if … almagro aemet