read error on connection to tcp://redis:6379<br />
<b>Fatal error</b>:  Uncaught Exception: Warning: session_write_close(): Failed to write session data using user defined save handler. (session.save_path: /app/var/session/, handler: Magento\Framework\Session\SaveHandler::write) in /app/vendor/magento/framework/Session/SessionManager.php on line 134 in /app/vendor/magento/framework/App/ErrorHandler.php:61
Stack trace:
#0 [internal function]: Magento\Framework\App\ErrorHandler-&gt;handler(2, 'session_write_c...', '/app/vendor/mag...', 134)
#1 /app/vendor/magento/framework/Session/SessionManager.php(134): session_write_close()
#2 [internal function]: Magento\Framework\Session\SessionManager-&gt;writeClose()
#3 {main}
  thrown in <b>/app/vendor/magento/framework/App/ErrorHandler.php</b> on line <b>61</b><br />