ALLOCATION_FAILED engine failure, reason [search execution corruption failure]

"reason": "ALLOCATION_FAILED",
"at": "2016-04-13T02:37:23.700Z",
"details": "shard failure [engine failure, reason [search execution corruption failure]][FetchPhaseExecutionException[[similar][28]: query[xxxxx],from[0],size[15]: Fetch Failed [Failed to fetch doc id [75969170]]]; nested: CorruptIndexException[Corrupted: docID=75969170, docBase=9520954, chunkDocs=34, numDocs=682343722 (resource=NIOFSIndexInput(path="/ssd/elasticsearch/data/elastic/nodes/0/indices/index/28/index/_16oi.fdt"))]; ]"

Is there some one know why,one shard can not allocation

As it says, you have a corrupted file.

What version are you on?

@warkolm my version is 1.7.3,i know there is a corrupted file.but,i do not know why.it says there is a query occured this problem.

engine failure, reason [search execution corruption failure]][FetchPhaseExecutionException[[similar][28]: query[xxxxx],from[0],size[15]: Fetch Failed [Failed to fetch doc id [75969170]]];