salvage.lock - Prevents multiple simultaneous salvage operations on a
The salvage.lock file guarantees that only one Salvager (salvager
process) runs at a time on a file server machine (the single process
can fork multiple subprocesses to salvage multiple partitions in
parallel). As the Salvager initializes, it creates the empty (zero-
length) file in the /var/lib/openafs/local directory and invokes the
flock system call on it. It removes the file when it completes the
salvage operation. Because the Salvager must lock the file to run, only
one Salvager can run at a time.
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