MooseFS high-availability method and system based on main and standby switching

• Main Authors: TAI XIANQING, LIN BINGDONG, ZHAO DANPU
• Format: Patent
• Language: Chinese; English
• Published: 15.06.2018
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; PHYSICS; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention discloses a MooseFS high-availability method based on main and standby switching, wherein the method comprises the following steps: a first metadata node is determined to be a main metadata node through main and standby elections, and a second metadata node is determined to be a standby metadata node; the main metadata node and a plurality of data nodes carry out data transmission and synchronize the metadata to a metadata synchronization module in real time; the standby metadata node periodically acquires metadata from the metadata synchronization module, monitors the working state of the main metadata node in real time, and judges whether the working state of the main metadata node is abnormal or not; if the working state of the main metadata node is abnormal, the main andstandby elections are controlled to carry out again; and if the standby metadata node election is successful, the standby metadata node is taken as a new main metadata node. The invention further discloses a MooseFS high-avai