Most attachments get filtered out by the mailing list software so I cannot tell 
exactly what you are referring too, but it looks like you are correct that we 
disallow keys with a '.' in them.
https://github.com/apache/storm/blob/master/storm-core/src/jvm/org/apache/storm/utils/Utils.java#L1735
But then try to match the name of the key to have a . in it.  Please file a 
JIRA with a reproducible use case in it and we will fix it.


- Bobby

On Monday, March 6, 2017, 10:16:05 PM CST, 马庆祥 <[email protected]> 
wrote:Hello all,
I have a questions about storm distributed cache.As shown in the figure 1 and 
figure 2, the method "getBlobs" in the "Localizer" class, and the method 
"DownloadBlob" in the "Localizer" class.In my opinion, the "localFile" 
parameter is always the blob key, it can not be with the suffix of ".tar.gz", 
so the "unpack" method can not work, Please help me understand it.
Thanks & RegardsQingxiang Ma
                                             figure 1                           
                     figure 2
​

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