Current status for software environment and developments at MLF, J-PARC

Inamura, Yasuhiro  ; Yasu, Yoshiji*; Oshita, Hidetoshi*; Nakatani, Takeshi ; Ito, Takayoshi*

From the beginning of MLF running, users have strongly required to see the current data during the measurement to decide next experimental conditions and schedules. To realize "real-time" data treatment we considered that the message queue technology of an asynchronous communications protocol should be utilized for our data acquisition system and data reduction software. In these years, we decided to adopt a Publish-Subscrib model using this technology and developed new modules working in our DAQ middleware, which send event-recorded data to a message queue server as a data publisher.