SODA Noriyuki <[EMAIL PROTECTED]> writes:
> We've encountered failures of "make check", when we put PostgreSQL
> data directory on a NFS filesystem or a tmpfs filesystem.
> It doesn't always fail, but fails occasionally.
Is the NFS filesystem mounted fail-soft?
As a rule, database people will tell you to just go away if you
admit to running a database over NFS. Its idea of reliability
is at least an order of magnitude worse than what we consider
acceptable. But hard mounting helps.
regards, tom lane
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TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
match
