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From Michael Widmann <>
Subject Cassandra to store 1 billion small 64KB Blobs
Date Fri, 23 Jul 2010 16:51:17 GMT

We plan to use cassandra as a data storage on at least 2 nodes with RF=2
for about 1 billion small files.
We do have about 48TB discspace behind for each node.

now my question is - is this possible with cassandra - reliable - means
(every blob is stored on 2 jbods)..

we may grow up to nearly 40TB or more on cassandra "storage" data ...

anyone out did something similar?

for retrieval of the blobs we are going to index them with an hashvalue
(means hashes are used to store the blob) ...
so we can search fast for the entry in the database and combine the blobs to
a normal file again ...

thanks for answer


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