This chapter includes databases that range from single-user
read/write to industrial database servers with transaction support.
Generally, you will be sent here to satisfy dependencies to other
applications although building a SQL server on a base LFS system is
entirely possible.
Introduction to Berkeley DB
The Berkeley DB package contains
programs and utilities used by many other applications for
database related functions. This package is also installed during
LFS and may already exist on your system. It is listed here in
BLFS as well because you may need to reinstall it if you need the
additional language bindings or the RPC server. If you do
reinstall Berkeley DB, ensure
you use the 4.4.20 version used in the LFS book.
Package Information
Additional Downloads
Berkeley DB Dependencies
Optional
Tcl-8.4.13, JDK-1.5.0_10, and sharutils (for the uudecode command)
User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/db
Testing Berkeley DB
You may want to skip ahead to the section called
“Installation of Berkeley DB”. The test suite can
take up to 150 SBUs and has a few bugs causing a report of
“Regression tests failed”.
However, running the test suite is a very exhaustive test of your
hardware, perhaps pushing your machine harder (especially disk
I/O) than it will ever see during production use. Note that you
must have Tcl installed to run
the test suite.
Build for the Berkeley DB test
by running the following commands:
for PATCH in ../patch.4.4.20.{1..4}; do patch -Np0 -i $PATCH; done &&
cd build_unix &&
../dist/configure --prefix=/usr \
--enable-test \
--enable-tcl \
--with-tcl=/usr/lib &&
make
To test the results, start tclsh:
tclsh
From the tclsh
prompt (% ), run:
source ../test/test.tcl
run_parallel 5 run_std
exit
Clean up the source tree with the following command:
make realclean &&
cd ..
Installation of Berkeley DB
The installation commands below are identical to the commands
used in the LFS book. If you installed Berkeley DB in LFS, and you don't add
anything to the configure script, you'll end up with
exactly what you already have. The additional parameters you can
use are listed in the Command Explanations section below. Install
Berkeley DB by running the
following commands:
for PATCH in ../patch.4.4.20.{1..4}; do patch -Np0 -i $PATCH; done &&
cd build_unix &&
../dist/configure --prefix=/usr \
--enable-compat185 \
--enable-cxx &&
make
Now, as the root user:
make docdir=/usr/share/doc/db-4.4.20 install &&
chown -v root:root /usr/bin/db_* /usr/lib/libdb* /usr/include/db* &&
chown -v root:root /usr/bin/berkeley_db_svc &&
chown -v -R root:root /usr/share/doc/db-4.4.20
Command Explanations
cd build_unix &&
../dist/configure --prefix=/usr...: This replaces
the normal ./configure command, as Berkeley DB comes with various build
directories for different platforms.
--enable-compat185: This
switch enables building the DB-1.85 compatibility API.
--enable-cxx: This switch
enables building C++ API libraries.
--enable-tcl
--with-tcl=/usr/lib: Enables Tcl support in DB and creates the libdb_tcl libraries.
--enable-java: Enables
Java support in DB and creates
the libdb_java libraries.
--enable-rpc: Enables
building the Berkeley DB RPC
server.
make
docdir=/usr/share/doc/db-4.4.20 install: This
installs the documentation in the correct location instead of
/usr/docs.
chown -v root:root
/usr/bin/berkeley_db_svc: This command changes
the ownership of the RPC server program. It is only required if
you passed --enable-rpc to
the configure
script.
Contents
Only the program and libraries not installed in LFS are listed
here, the others can be found at
../../../../lfs/view/6.2/chapter06/db.html#contents-db
as they were initially installed during the building of LFS.
Installed
Program: berkeley_db_svc
Installed
Libraries: libdb_java.{so,a} and libdb_tcl.{so,a}
Installed
Directory: /usr/share/doc/db-4.4.20
Short Descriptions
|
berkeley_db_svc
|
is the Berkeley DB RPC
server.
|