Most of the methods to achieve
fix close_file bug
Merge remote-tracking branch 'origin/newms_zqh' into newms_zy
Merge remote-tracking branch 'origin/newms_zy' into newms_zqh
modify msg MSG_DEL_NODE
add a start mode: get all objects from old metastore, ignore all old msgs
modify msg about index
modify how table and nodegroup are stored, add method to refresh cache in CacheStore
test oldms method about table index database node
Merge remote-tracking branch 'origin/newms_zy' into newms_zqh