|5.2. The DBZ package|
INN uses the DBZ database package. Thanks to Jon Zeeff for his permission to use and redistribute DBZ, as modified by Henry Spencer. INN has its own set of modifications to DBZ. The changes are made with the patch program and the context diff in lib/dbz.pch. If you don't have patch installed, then you can make the changes manually. (If you don't have Larry Wall's patch program get it from any comp.sources.unix archive as well as many FSF archives and other places -- you'll be glad you did.) Both innd and nnrpd have the option of keeping the DBZ hash table in memory, under the control of the INND_DBZINCORE and NNRP_DBZINCORE_DELAY parameters, respectively. This can consume lots of RAM proportional to the size of your history database, but it can also avoid a great deal of disk I/O. You should probably see the DBZ manpage in the doc directory for some (brief) additional discussion of this issue. If you are using vfork (specified in the FORK parameter), or you want to mmap the database, then you must apply the patch. The Makefile in lib will normally do it for you automatically, anyway. The beginning of the patch file describes the changes made in more detail. If you do not apply the patch, then you must add add ``dbzalt.c'' and ``dbzalt.o'' to the MISSING_SRC and MISSING_OBJ parameters. Apparently the System V 386 compiler can't optimize dbz.c (the GNU C compiler doesn't have this problem). If you have ``-O'' in your DBZCFLAGS configuration parameter, then take it out.
|[Source:"Installing InterNetNews 1.5.1"] [File-name:install.ms.1][Revision: 1.19 1996/11/10]|
[Copyright: 1991 Rich Salz, 1996 Internet Software Consortium]