Immediate shutdown causes the assertion failure in 9.4dev - Mailing list pgsql-hackers

From Fujii Masao
Subject Immediate shutdown causes the assertion failure in 9.4dev
Date
Msg-id CAHGQGwF+BTZhFHncvnQUG+hdQCLSnzv16cvC-TX96eEOzpRvmQ@mail.gmail.com
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Responses Re: Immediate shutdown causes the assertion failure in 9.4dev
Re: Immediate shutdown causes the assertion failure in 9.4dev
List pgsql-hackers
Hi,

I encountered the following assertion failure when I executed
an immediate shutdown.

LOG:  received immediate shutdown request
WARNING:  terminating connection because of crash of another server process
DETAIL:  The postmaster has commanded this server process to roll back
the current transaction and exit, because another server process
exited abnormally and possibly corrupted shared memory.
HINT:  In a moment you should be able to reconnect to the database and
repeat your command.
TRAP: FailedAssertion("!(CheckpointerPID == 0)", File: "postmaster.c",
Line: 3440)

The cause of this problem seems to be that PostmasterStateMachine()
may fail to wait for the checkpointer to exit. Attached patch fixes this.

Regards,

--
Fujii Masao

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