任务日志如下：
2017-11-23-17:27:12.103 [ 1663][31970][ EVENT]: Begin to install temporary coord in task[27](installTmpCoord.js:_init)
2017-11-23-17:27:12.108 [ 1663][31970][ EVENT]: No error happened last time(installTmpCoord.js:_handleerror)
2017-11-23-17:27:14.126 [ 1663][31970][ EVENT]: Success to create new temporary coord[iZbp1cczi59qkkvxmld5ghZ:10000](installTmpCoord.js:main)
2017-11-23-17:27:14.127 [ 1663][31970][ EVENT]: Finish installing temporary coord in task[27](installTmpCoord.js:_final)
2017-11-23-17:27:14.140 [ 1663][31970][ EVENT]: Begin to remove data group in task[27](removeDataRG.js:_init)
2017-11-23-17:27:14.142 [ 1663][31970][ EVENT]: Removing data group[group1](removeDataRG.js:main)
2017-11-23-17:27:14.144 [ 1663][31970][ *ERROR]: Failed to remove data group[group1], rc: -208, detail: Unable to remove non-empty group(removeDataRG.js:main)
2017-11-23-17:27:14.144 [ 1663][31970][ *ERROR]: Failed to remove all the data group, rc:-208, detail:Failed to remove data group[group1](removeDataRG.js:main)
2017-11-23-17:27:14.144 [ 1663][31970][ EVENT]: Finish removing data group in task[27](removeDataRG.js:_final)
2017-11-23-17:27:14.157 [ 1663][31970][ EVENT]: Begin to remove temporary coord in task[27](removeTmpCoord.js:_init)
2017-11-23-17:27:16.229 [ 1663][31970][ EVENT]: Finish removing temporary coord in task[27](removeTmpCoord.js:_final)
[hr]
是不是需要将data group下的node全部remove？ 我在sdb shell中删掉一个node，但是删除最后一个node的时候删不掉了。。。
(nofile):0 uncaught exception: -204Unable to remove the last node or primary in a group
我现在应该怎么办？
