Edit report at http://bugs.php.net/bug.php?id=52263&edit=1
ID: 52263
User updated by: andrew at digicol dot de
Reported by: andrew at digicol dot de
Summary: Script cleanup takes long with Oracle 11 instant
client
Status: Open
Type: Bug
Package: OCI8 related
Operating System: Linux
PHP Version: 5.3.2
New Comment:
There is a logical fault in the script that I pasted - the calculation
of the elapsed time should be after the disconnect ( sorry, this
happened while stripping down the original test script to a simpler
one). This does not affect the described behavior, though - the pause is
still there:
...
if ($conn === false) die("ocilogon failed\n");
list($usec, $sec) = explode(' ', microtime());
$now = ((float)$usec + (float)$sec);
$elapsed = $now - $stime;
fwrite(STDOUT, $elapsed . "\n");
Previous Comments:
------------------------------------------------------------------------
[2010-07-06 15:49:26] andrew at digicol dot de
Description:
------------
PHP scripts that connect to an Oracle 11gR2 database server using
version 11 clients (instant client, fat client) hang for approx. one
second after the last command in the script has been executed.
=== version 11 client ===
PHP was build with the following configure option:
--with-oci8=--with-oci8=instantclient,/usr/local/lib64/instantclient/instantclient_11_2
Executing the test script results in:
$ time php oci_connect.php
0.0691978931427
real 0m1.119s
user 0m0.055s
sys 0m0.058s
The first value is printed as the last statement in the script. It will
not return immediately to the command-line, but hang noticeably for
approx. 1 second.
When commenting out the two OCI-related statements the script returns
immediately.
This may also be a bug in the Oracle client libraries, I am not sure.
But the one second pause does not happen when connect and disconnecting
with sqlplus:
time echo -e "exit\n" | sqlplus *****/*****@//*****/*****
SQL*Plus: Release 11.2.0.1.0 Production on Thu Jul 1 16:56:11 2010
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Release 11.2.0.1.0 - 64bit Production
>Disconnected from Oracle Database 11g Release 11.2.0.1.0 - 64bit
Production
real 0m0.063s
user 0m0.018s
sys 0m0.011s
Test script:
---------------
oci_connect.php:
<?php
list($usec, $sec) = explode(' ', microtime());
$stime = ((float)$usec + (float)$sec);
$conn = ocilogon('user', 'pass', 'host/service');
if ($conn === false) die("ocilogon failed\n");
list($usec, $sec) = explode(' ', microtime());
$now = ((float)$usec + (float)$sec);
ocilogoff($conn);
if ($conn === false) die("ocilogon failed\n");
$elapsed = $now - $stime;
fwrite(STDOUT, $elapsed . "\n");
?>
Expected result:
----------------
I would expect the same behavior as with the Oracle 10 client
libraries:
=== version 10 client ===
When PHP is built against the older, release 10 libraries, this does not
happen:
--with-oci8=--with-oci8=instantclient,/usr/local/lib64/instantclient/instantclient_10_2
Executing the test script results in:
$ time php oci_connect.php
0.0691978931427
real 0m0.161s
user 0m0.052s
sys 0m0.068s
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/bug.php?id=52263&edit=1
