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</o:shapelayout></xml><![endif]--></head><body lang=ZH-CN link="#0563C1" vlink="#954F72" style='text-justify-trim:punctuation'><div class=WordSection1><p class=MsoNormal><span lang=EN-US>Hi, all:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>We noticed that slurmdbd provide the conf option <b>DbdBackupHost</b> for user to set a secondary slurmdbd node. Since slurmdbd is closely related to database, we wonder will multiple slurmdbd bring up the split-brain danger, which is the common topic in database high-available discussion. Will there be any case in which slurmdbd_A and slurmdbd_B failed to recognize each other’s state and both work as active node?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Another related question is, when primary slurmdbd node work well, will standby slurmdbd node write anything to database? If standby slurmdbd won’t write anything, then is it safe to separately connect slurmdbd_A to mysql_A, and slurmdbd_B to mysql_B, and using multi-source replication to sync mysql_A with mysql_B?<o:p></o:p></span></p></div></body></html>