(No version information available, might only be in SVN)
GearmanClient::ping — Send data to all job servers to see if they echo it back
Sends some arbitrary data to all job servers to see if they echo it back. The data sent is not used or processed in any other way. Primarily used for testing and debugging.
Some arbitrary serialized data to be echo back
성공할 경우 TRUE를, 실패할 경우 FALSE를 반환합니다.