pg_dump fails on 7.4 Postgres

"Jimmie H. Apsey" <japsey@futuredental.com> writes:

This may be my second posting but I think I've done it correctly this time.
At this point, I am unable to do a pg_dump using our new Rec Hat
Enterprise Linux AS 4 version of Postgres which is version 7.4.
Here's what I get when I try to do a pg_dump of our database:
---------------------------------------------------------------------------------------------------------------------------
[~]$
[ ~]$ /usr/bin/pg_dump dcf_20050404 >& /~/dcf_20050404_`date +%y%m%d`.dmp
audit(1115732852.025:0): avc: denied { write } for pid=11023
exe=/usr/bin/pg_dump path=/~/dcf_20050404_050510.dmp
dev=sda3 ino=5522308 scontext=user_u:system_r:postgresql_t
tcontext=user_u:object_r:file_t tclass=file

Looks like your security settings aren't allowing pg_dump to write
files. You should probably talk to Red Hat about how to fix them.

-Doug

"Jimmie H. Apsey" <japsey@futuredental.com> writes:

At this point, I am unable to do a pg_dump using our new Rec Hat
Enterprise Linux AS 4 version of Postgres which is version 7.4.
Here's what I get when I try to do a pg_dump of our database:

[ ~]$ /usr/bin/pg_dump dcf_20050404 >& /~/dcf_20050404_`date +%y%m%d`.dmp
audit(1115732852.025:0): avc: denied { write } for pid=11023
exe=/usr/bin/pg_dump path=/~/dcf_20050404_050510.dmp
dev=sda3 ino=5522308 scontext=user_u:system_r:postgresql_t
tcontext=user_u:object_r:file_t tclass=file

Hmm, what is the SELinux labeling for pg_dump? Try

$ ls -Z /usr/bin/pg_dump
-rwxr-xr-x root root system_u:object_r:bin_t /usr/bin/pg_dump

If you get something other than that, try "/sbin/restorecon -R /usr/bin"
as root; if that doesn't fix it, you probably need to update your
SELinux policy (RPM selinux-policy-targeted). I am not entirely sure
whether a policy RPM update automatically does the equivalent of
"/sbin/restorecon -R /", but if you don't see the right context after
an update, that's what I'd suggest.

Here's Postgres rpm on the machine in question:
postgresql-7.4.6-1.RHEL4.2
postgresql-server-7.4.6-1.RHEL4.2

I think that was what went out on the RHEL4 CD-ROMs, but why aren't you
running up2date? There are serious known bugs in that version. If
you're paying Red Hat for support, you should be using that support ;-)

regards, tom lane

Tom Lane wrote: