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Zend_Cache_Backend_Libmemcached doesn't pass Memcached::OPT_NO_BLOCK option through #53

zfbot opened this Issue Apr 5, 2013 · 1 comment


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zfbot commented Apr 5, 2013

Jira Information

Original Issue:ZF-12517
Issue Type:Bug


A bug in Zend_Cache_Backend_Libmemcached causes it not to pass the Memcached::OPT_NO_BLOCK client option setting through Memcached::setOption(). This means that one cannot put libmemcached in non-blocking mode and hence set timeouts on socket polling, which is the only way I've found to time limit load() calls.

The bug is on line 135 (of the 1.12.1 release code). Memcached::OPT_NO_BLOCK has value 0, hence the if condition fails and the option isn't set. The if clause should instead be {{!is_null($optId)}}.

   122          // setup memcached client options
   123          foreach ($this->_options['client'] as $name => $value) {
   124              $optId = null;
   125              if (is_int($name)) {
   126                  $optId = $name;
   127              } else {
   128                  $optConst = 'Memcached::OPT_' . strtoupper($name);
   129                  if (defined($optConst)) {
   130                      $optId = constant($optConst);
   131                  } else {
   132                      $this->_log("Unknown memcached client option '{$name}' ({$optConst})");
   133                  }
   134              }
   135              if ($optId) {
   136                  if (!$this->_memcache->setOption($optId, $value)) {
   137                      $this->_log("Setting memcached client option '{$optId}' failed");
   138                  }
   139              }
   140          }

zfbot commented Apr 5, 2013

This issue was ported from the ZF2 Jira Issue Tracker at

Known GitHub users mentioned in the original message or comment:

@froschdesign froschdesign self-assigned this Mar 19, 2014

@froschdesign froschdesign added this to the 1.12.6 milestone Mar 19, 2014

xopherdeep pushed a commit to xopherdeep/Zend-Framework-v1 that referenced this issue Jul 3, 2014

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