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Re^5: Parallel::Forkmanager and large hash, running out of memory

by pokki (Monk)
on Apr 24, 2013 at 18:37 UTC ( #1030479=note: print w/replies, xml ) Need Help??


in reply to Re^4: Parallel::Forkmanager and large hash, running out of memory
in thread Parallel::Forkmanager and large hash, running out of memory

The relevant doc is here.

The tl;dr: version is: any number of processes can read at the same time. When a process wants to write to the database, the engine is notified, waits for current readers to finish, then gives exclusive access to the writer process. No one can read while a write is occurring. When the write is finished, everybody can start reading again.

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