如何移除elasticsearch中状态为红色的shard?

settings:
"number_of_shards":5
"number_of_replicas":0

index0   2 p STARTED    115012995 14.6gb 127.0.0.1 Windeagle 
index0   3 p STARTED    114995287 14.6gb 127.0.0.1 Windeagle 
index0   4 p STARTED    114991132 14.6gb 127.0.0.1 Windeagle 
index0   1 p UNASSIGNED                                      
index0   0 p UNASSIGNED   

名为index0的index有2个shard坏了, 应该修复不了吧，索性移除了

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貌似分片建立好后就不能修改了
只能重建