Re: postmaster grows

Max Vaschenko <max(at)nino(dot)ru> writes:
> [ postmaster leaks memory when using password authentication ]

You are right! The postmaster leaks memory to the tune of a few dozen
bytes per password authentication attempt. I'm surprised no one noticed
this before. People must not be using password auth under heavy load...

Attached is a patch to fix it in 7.0.*.

regards, tom lane

*** src/backend/libpq/crypt.c.orig Sat Jul 17 16:17:01 1999
--- src/backend/libpq/crypt.c Wed Feb 7 18:40:01 2001
***************
*** 59,64 ****
--- 59,65 ----
bufsize = strlen(pwdfilename) + strlen(CRYPT_PWD_RELOAD_SUFX) + 1;
rpfnam = (char *) palloc(bufsize);
snprintf(rpfnam, bufsize, "%s%s", pwdfilename, CRYPT_PWD_RELOAD_SUFX);
+ pfree(pwdfilename);

return rpfnam;
}
***************
*** 79,84 ****
--- 80,87 ----
pwdfile = AllocateFile(filename, "rb");
#endif

+ pfree(filename);
+
return pwdfile;
}

***************
*** 131,136 ****
--- 134,140 ----

filename = crypt_getpwdreloadfilename();
result = unlink(filename);
+ pfree(filename);

/*
* We want to delete the flag file before reading the contents of the