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* Record locking now compares records based on their hashes to avoid scheduling multiple req * The locking code now correctly implements a per-database active locks limit. Whole dat

through the fcntl() byte range locking interface as the core coherence filesystem, but will instead build our own locking and transport layer

...was limited in scalability for large i/o due to locking. Improvements to locking to allow significantly more scalability for large file i/o will be in the 5

* Split up locking.tdb for better scaling of per-file concurrent access * Improved TDB database performance (using robust mutex locking)

* Account lockout: the threshold of unsuccessful login attempts before locking a user out of their account, and the duration they're locked out for.

* clean up locking order ==== locking/open files (fs layer) ====

...han a DNS/host name, should be used when configuring client mounts. NFSv3 locking is heavily tied to IP addresses and can break if a client uses round-robin

Locking Protocol: "lock_dlm" Locking Protocol: "lock_dlm"

...uld be added under a sub-level test suite. For instance when adding a new locking test to the ''raw'' directory it should be added in the lock.c file with an

...B provides a clustered database with persistent key-value data storage and locking. Database usage is abstracted out via a generic ''dbwrap'' interface.<br> ...y protocol is also provided as a mechanism for synchronising client state (locking). Key-value data stored in the RADOS back-end inherits the same redundancy

* Freezing the cluster. This includes locking all local tdb databases to prevent any clients from accessing the databases

...ire a number of different races and contentions to exercise the networking locking behaviour. Compared to non-networked code, the amount of errors cases and m

...not designed to cope under such workloads. The database requires extensive locking to maintain consistency and both types of Samba DNS servers are currently r

locking = yes

...mmand. The tool is simply backing up the local files and it has sufficient locking in place to ensure the backup is generated safely.

|Exercise O_DSYNC to check locking when writing

:* [https://bugzilla.samba.org/show_bug.cgi?id=12469 BUG #12469]: ctdb-locking: Explicitly unlock record/db in lock helper. :* [https://bugzilla.samba.org/show_bug.cgi?id=12392 BUG #12392]: ctdb-locking: Reset real-time priority in lock helper.

|Exercise O_DSYNC to check locking when writing

While 4.17 already improved the situation quite a lot, with 4.18 the locking overhead for contended path based operations is reduced by an additional fa

...=13584 BUG #13584]: vfs_fruit: Fix a panic if fruit_access_check detects a locking conflict. ...to an open file or directory in Samba can be queried through the 'net tdb locking' command. In clustered Samba this can be useful to determine the file or di