| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Mark Mielke <mark(at)mark(dot)mielke(dot)cc> |
| Cc: | Stephen Frost <sfrost(at)snowman(dot)net>, pgsql-hackers(at)postgresql(dot)org, fulan Peng <fulanpeng(at)gmail(dot)com> |
| Subject: | Re: Re: [COMMITTERS] Can not create more than 32766 databases in ufs file system. |
| Date: | 2009-09-12 20:15:09 |
| Message-ID: | 12155.1252786509@sss.pgh.pa.us |
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| Lists: | pgsql-committers pgsql-hackers |
Mark Mielke <mark(at)mark(dot)mielke(dot)cc> writes:
> My God - I thought 32k databases in the same directory was insane.
> 220M+???????
Considering that the system catalogs alone occupy about 5MB per
database, that would require an impressive amount of storage...
In practice I think users would be complaining about our choice
to instantiate the catalogs per-database a lot sooner than they'd
hit the subdirectory-count limit.
BTW, there is another avenue that the OP could look into if he
really wants this many databases on a UFS filesystem: split them up
into multiple tablespaces.
regards, tom lane
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