redis - After php upgrade pcntl_fork causing "errno=32 Broken pipe" -

i upgraded php 5.4.26 5.4.28 after upgrade getting error

notice: unknown: send of 6 bytes failed errno=32 broken pipe in unknown on line 0 

when ever run following code:

<?php $tasks = array(    '1'  => array(),    '2'  => array(), );  ini_set('display_errors', true);  class redisclass {      private $redis;      public function __construct()     {         $this->redis = new redis();         $this->redis->connect('localhost', 6379);     }  }  $redis = new redisclass();  foreach ($tasks $index => $task) {     $pid = pcntl_fork();      // child                                                                                                                                                               if($pid == 0)     {         echo "running ".$index." child in ". getmypid() ."\n";         break;     } }  switch($pid) { case -1 :     die('could not fork');     break; case 0:     // child code                                                                                                                                                             break; default:     while (pcntl_waitpid(0, $status) != -1)     {         $status = pcntl_wexitstatus($status);         echo "child completed status $status\n";     }     echo "child done (says: ". getmypid() .")";     exit; } 

if fork 1 child not php notice. if run more 1 child php notice every child except first child.

does have clues going on here?

i assuming trying close redis connection multiple times code have been running @ least 4 months out issues.

it starting displaying these notices after upgrade 5.4.28.

i have looked @ php change logs cannot see think may explain issue.

should report php bug?

update:

looks "may" redis issue, using phpredis tested same code mysql connection instead of loading redis , not error.

class mysqlclass {     private $mysqli;     public function __construct()     {         $this->mysqli = mysqli_init();  //this not droid looking                                                                                                      $this->mysqli->real_connect('ip_address',                                     'user_name',                                     'password');     } }  $mysql = new mysqlclass(); 

the problem here not reconnect redis in child process. michael had said, not have active connection second child onwards. mysql example should not work if make queries.

i have had exact problematic behaviour "mysql server has gone away" error , redis.

the solution create new connection mysql , redis in child. make sure if have singletone handles mysql/redis connection reset instances ( problem me ).