blocks|key|466322|text|您应该可以使用10MB的文件。实际上，如果我没记错的话，DataStax+Brisk在Cassandra之上放置了一个文件系统：http://www.datastax.com/products/enterprise。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|466323|(我与他们没有任何联系-这不是一个广告)|466324|entityMap|0|LINK|mutability|MUTABLE|url|http://www.datastax.com/products/enterprise^0|1S|17|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]]|C|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]]]

You should be OK with files of 10MB. In fact, DataStax Brisk puts a filesystem on top of Cassandra if I'm not mistaken: <a href="http://www.datastax.com/products/enterprise" rel="noreferrer">http://www.datastax.com/products/enterprise</a>.

(I'm not associated with them in any way- this isn't an ad)

blocks|key|682376|text|从cassandra+wiki，|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|682377|Cassandra's+public+API+is+based+on+Thrift,+which+offers+no+streaming+abilities+
any+value+written+or+fetched+has+to+fit+in+memory.+This+is+inherent+to+Thrift's+
design+and+is+therefore+unlikely+to+change.+So+adding+large+object+support+to
Cassandra+would+need+a+special+API+that+manually+split+the+large+objects+up+
into+pieces.+A+potential+approach+is+described+in+http://issues.apache.org/jira/browse/CASSANDRA-265.++++
As+a+workaround+in+the+meantime,+you+can+manually+split+files+into+chunks+of+whatever+
size+you+are+comfortable+with+--+at+least+one+person+is+using+64MB+--+and+making+a+file+correspond+
to+a+row,+with+the+chunks+as+column+values.|code-block|syntax|javascript|682378|因此，如果你的文件小于10MB，你应该没问题，只要确保限制文件大小，或者将大文件分成块。|682379|entityMap|0|LINK|mutability|MUTABLE|url|http://wiki.apache.org/cassandra/CassandraLimitations^0|1|E|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|X|8|@]|9|@]|C|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

From the <a href="http://wiki.apache.org/cassandra/CassandraLimitations" rel="noreferrer">cassandra wiki</a>,

<pre><code>Cassandra's public API is based on Thrift, which offers no streaming abilities 
any value written or fetched has to fit in memory. This is inherent to Thrift's 
design and is therefore unlikely to change. So adding large object support to
Cassandra would need a special API that manually split the large objects up 
into pieces. A potential approach is described in http://issues.apache.org/jira/browse/CASSANDRA-265. 
As a workaround in the meantime, you can manually split files into chunks of whatever 
size you are comfortable with -- at least one person is using 64MB -- and making a file correspond 
to a row, with the chunks as column values.
</code></pre>

So if your files are &lt; 10MB you should be fine, just make sure to limit the file size, or break large files up into chunks.

blocks|key|466421|text|作为新的信息，Netflix为他们的cassandra客户端提供了名为astyanax的实用程序，用于将文件存储为处理对象存储。描述和示例可以在here中找到。使用astyanax编写一些测试并评估Cassandra作为文件存储可能是一个很好的起点。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|466422|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/Netflix/astyanax|1|https://github.com/Netflix/astyanax/wiki/Chunked-Object-Store^0|Z|8|0|20|4|1|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]|$A|R|B|S|1|T]]|C|$]]|$1|D|3|-4|5|6|7|U|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]|L|$5|G|H|I|C|$J|M]]]]

As fresh information, Netflix provides utilities for their cassandra client called <a href="https://github.com/Netflix/astyanax" rel="nofollow noreferrer">astyanax</a> for storing files as handled object stores. Description and examples can be found <a href="https://github.com/Netflix/astyanax/wiki/Chunked-Object-Store" rel="nofollow noreferrer">here</a>. It can be a good starting point to write some tests using astyanax and evaluate Cassandra as a file storage.

I'm developing a php platform that will make huge use of images, documents and any file format that will come in my mind so i was wondering if Cassandra is a good choice for my needs.

If not, can you tell me how should i store files? I'd like to keep using cassandra because it's fault-tolerant and uses auto-replication among nodes.

Thanks for help.

Is Cassandra good for storing files?

对象存储

文件存储

文件系统

Cassandra

我正在开发一个php平台，它将大量使用图像、文档和我脑海中浮现的任何文件格式，所以我想知道Cassandra是否是我需要的一个很好的选择。如果没有，你能告诉我应该如何存储文件吗？我希望继续使用cassandra，因为它具有容错能力，并且可以在节点之间自动复制。谢谢你的帮助。

问Cassandra适合存储文件吗？
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