• antirez's avatar
    New masters with slots are now targets of migration if others are. · 7b618823
    antirez authored
    This fixes issue #3043.
    
    Before this fix, after a complete resharding of a master slots
    to other nodes, the master remains empty and the slaves migrate away
    to other masters with non-zero nodes. However the old master now empty,
    is no longer considered a target for migration, because the system has
    no way to tell it had slaves in the past.
    
    This fix leaves the algorithm used in the past untouched, but adds a
    new rule. When a new or old master which is empty and without slaves,
    are assigend with their first slot, if other masters in the cluster have
    slaves, they are automatically considered to be targets for replicas
    migration.
    7b618823
cluster.c 202 KB