I work for a hosting company (http://www.tigertech.net/) using eAccelerator with PHP/FastCGI.
By default, eAccelerator returns FAILURE if the version of PHP doesn't match
the exact version it was compiled for. This makes upgrades difficult: even if
you recompile both PHP and eAccelerator, any PHP/FastCGI instances that launch
between the time PHP and eAccelerator are upgraded (probably a few seconds)
will completely fail.
We used to deal with this by disabling eAccelerator during PHP upgrades, but
that's error-prone (easy to forget). We patched eAccelerator as follows --
it causes eAccelerator to still log an error and bail out before doing anything,
but return SUCCESS instead of FAILURE so that the PHP instance can continue
(albeit without eAccelerator support).
--- php5-eaccelerator-0.9.5.orig/eaccelerator.c 2006-10-11 05:45:52.000000000 -0700
+++ php5-eaccelerator-0.9.5/eaccelerator.c 2007-05-01 13:02:09.000000000 -0700
@@ -1946,11 +1946,15 @@
strcmp(Z_STRVAL(v),PHP_VERSION) == 0) {
ret = 1;
} else {
- zend_error(E_CORE_WARNING,"[%s] This build of \"%s\" was compiled for PHP version %s. Rebuild it for your PHP version (%s) or download precompiled binaries.\n", EACCELERATOR_EXTENSION_NAME,EACCELERATOR_EXTENSION_NAME,PHP_VERSION,Z_STRVAL(v));
+ /* tigertech: use fprintf instead of zend_error, because zend_error prints
+ to stdout which confuses mod_fcgid */
+ fprintf(stderr,"[%s] This build of \"%s\" was compiled for PHP version %s. Rebuild it for your PHP version (%s) or download precompiled binaries.\n", EACCELERATOR_EXTENSION_NAME,EACCELERATOR_EXTENSION_NAME,PHP_VERSION,Z_STRVAL(v));
}
zval_dtor(&v);
} else {
- zend_error(E_CORE_WARNING,"[%s] This build of \"%s\" was compiled for PHP version %s. Rebuild it for your PHP version.\n", EACCELERATOR_EXTENSION_NAME,EACCELERATOR_EXTENSION_NAME,PHP_VERSION);
+ /* tigertech: use fprintf instead of zend_error, because zend_error prints
+ to stdout which confuses mod_fcgid */
+ fprintf(stderr,"[%s] This build of \"%s\" was compiled for PHP version %s. Rebuild it for your PHP version.\n", EACCELERATOR_EXTENSION_NAME,EACCELERATOR_EXTENSION_NAME,PHP_VERSION);
}
return ret;
}
@@ -1998,7 +2002,9 @@
#endif
}
if (!eaccelerator_check_php_version(TSRMLS_C)) {
- return FAILURE;
+ /* tigertech: do not return FAILURE, because it causes PHP to
+ completely fail. */
+ return SUCCESS;
}
ZEND_INIT_MODULE_GLOBALS(eaccelerator, eaccelerator_init_globals, NULL);
REGISTER_INI_ENTRIES();
