From:
Operating system: CentOS 5.5 x86-64
PHP version: 5.3SVN-2010-11-10 (snap)
Package: PDO related
Bug Type: Bug
Bug description:PDO 5 Byte write to a broken pipe when forked
Description:
------------
When switching from PHP 5.1.6 to PHP 5.3.3 the following notice has begun
to show up in our scripts.
PDO::__construct(): send of 5 bytes failed with errno=32 Broken pipe
We are running a daemon and the forked children throw this error on the PDO
construct that is used to refresh the class.
The error changes depending on whether a persistent connection is set or
not.
When persistent is on the above error is produced. Without persistent
connection applied the error is thrown when the class is destructed.
Example: $pdo = null;
send of 5 bytes failed with errno=32 Broken pipe
We have confirmed this to be apparent in PHP 5.3.3 and the trunk build. I
was unable to test on 5.2, but I was able to confirm this bug does not
occur on 5.1.6
I have tried wrapping ob functions around the calls in case the broken pipe
happened to be stdout but I think it is the mysql socket that is in
question. On that same note, switching mysql to connect via tcp did not
help.
>From searching I found a site that threw this error but no discussions of
it.
Let me know any additional information that is needed.
Test script:
---------------
// without persistance
public static function shutdown(){
$base = Base::getBase();
$base->db = null;
self::$base = false;
}
// with persistance
$this->pdo = new PDO(
$dsn,
$user,
$pass,
array(
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
PDO::ATTR_PERSISTENT=> true
)
);
Expected result:
----------------
The PDO class should startup quietly when persistent connections are
enabled and destruct quietly when persistent connections are disabled.
Actual result:
--------------
PDO::__construct(): send of 5 bytes failed with errno=32 Broken pipe with
persistent connections.
Base::shutdown(): send of 5 bytes failed with errno=32 Broken pipe without
persistent connections.
I believe this problem is only related to forked processes. I have
confirmed the standard page serving to not throw this.
--
Edit bug report at http://bugs.php.net/bug.php?id=53287&edit=1
--
Try a snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=53287&r=trysnapshot52
Try a snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=53287&r=trysnapshot53
Try a snapshot (trunk):
http://bugs.php.net/fix.php?id=53287&r=trysnapshottrunk
Fixed in SVN:
http://bugs.php.net/fix.php?id=53287&r=fixed
Fixed in SVN and need be documented:
http://bugs.php.net/fix.php?id=53287&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=53287&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=53287&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=53287&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=53287&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=53287&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=53287&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=53287&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=53287&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=53287&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=53287&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=53287&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=53287&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=53287&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=53287&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=53287&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=53287&r=mysqlcfg
