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Signed-off-by: Gwen Shapira <[email protected]>
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gwenshap committed Nov 11, 2011
1 parent 0b2801f commit 964c569
Showing 1 changed file with 6 additions and 73 deletions.
79 changes: 6 additions & 73 deletions lib/DBD/Oracle/Troubleshooting.pm
Original file line number Diff line number Diff line change
Expand Up @@ -56,78 +56,12 @@ utility may offer some help. Run these two commands:
$ORACLE_HOME/bin/adapters
$ORACLE_HOME/bin/adapters $ORACLE_HOME/bin/sqlplus
and check the output. The "Protocol Adapters" section should be the
same. It should include at least "IPC Protocol Adapter" and "TCP/IP
and check the output. The "Protocol Adapters" should include at least "IPC Protocol Adapter" and "TCP/IP
Protocol Adapter".
If it generates any errors which look relevant then please talk to your
Oracle technical support (and not the dbi-users mailing list).
=head1 OPTIMIZING ORACLE'S LISTENER
[By Lane Sharman <[email protected]>] I spent a lot of time optimizing
listener.ora and I am including it here for anyone to benefit from. My
connections over tnslistener on the same humble Netra 1 take an average
of 10-20 milli seconds according to tnsping. If anyone knows how to
make it better, please let me know!
LISTENER =
(ADDRESS_LIST =
(ADDRESS =
(PROTOCOL = TCP)
(Host = aa.bbb.cc.d)
(Port = 1521)
(QUEUESIZE=10)
)
)
STARTUP_WAIT_TIME_LISTENER = 0
CONNECT_TIMEOUT_LISTENER = 10
TRACE_LEVEL_LISTENER = OFF
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = xxxx)
(ORACLE_HOME = /xxx/local/oracle7-3)
(PRESPAWN_MAX = 40)
(PRESPAWN_LIST=
(PRESPAWN_DESC=(PROTOCOL=tcp) (POOL_SIZE=40) (TIMEOUT=120))
)
)
)
1) When the application is co-located on the host and there is no need for
outside SQLNet connectivity, stop the listener. You do not need it. Get
your application/cgi/whatever working using pipes and shared memory. I am
convinced that this is one of the connection bugs (sockets over the same
machine). Note the $ENV{ORAPIPES} env var. The essential code to do
this at the end of this section.
2) Be careful in how you implement the multi-threaded server. Currently I
am not using it in the initxxxx.ora file but will be doing some more testing.
3) Be sure to create user rollback segments and use them; do not use the
system rollback segments; however, you must also create a small rollback
space for the system as well.
5) Use large tuning settings and get lots of RAM. Check out all the
parameters you can set in v$parameters because there are quite a few not
documented you may to set in your initxxx.ora file.
6) Use svrmgrl to control oracle from the command line. Write lots of small
SQL scripts to get at V$ info.
use DBI;
# Environmental variables used by Oracle
$ENV{ORACLE_SID} = "xxx";
$ENV{ORACLE_HOME} = "/opt/oracle7";
$ENV{EPC_DISABLED} = "TRUE";
$ENV{ORAPIPES} = "V2";
my $dbname = "xxx";
my $dbuser = "xxx";
my $dbpass = "xxx";
my $dbh = DBI->connect("dbi:Oracle:$dbname", $dbuser, $dbpass)
|| die "Unable to connect to $dbname: $DBI::errstr\n";
=head1 LONGS
Expand Down Expand Up @@ -208,13 +142,13 @@ that was last fetched.
Nothing special with this you just have to set up you permissions as follows;
1) Have permission for RWE on 'usr/lib/oracle/10.2.0.3/client/' or the other directory where you RPMed to
1) Have permission for RWE on '/usr/lib/oracle/10.2.0.3/client/' or the other directory where you RPMed to
2) Set export ORACLE_HOME=/usr/lib/oracle/10.2.0.3/client/lib
2) Set export ORACLE_HOME=/usr/lib/oracle/10.2.0.3/client
3) Set export LD_LIBRARY_PATH=$ORACLE_HOME
3) Set export LD_LIBRARY_PATH=$ORACLE_HOME/lib
4) You will also have to tell DBD:Oracle where the TNS names is with Export TNS_ADMIN=dir to where your tnsnames.ora file is
4) If you plan to use tnsnames to connect to remote servers and your tnsnames.ora file is not in $ORACLE_HOME/network/admin, you will need to Export TNS_ADMIN=dir to point DBD::Oracle to where your tnsnames.ora file is
=head2 undefined symbol: __cmpdi2 comes up when Oracle isn't properly linked to the libgcc.a library.
Expand Down Expand Up @@ -307,8 +241,7 @@ So far there is no patch for this but here are some work arounds
or this way
utf8::downgrade($parameter, 1);
=head1 CYGWIN
Expand Down

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