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Re: write throughput in cassandra, understanding hbase - HBase - [mail # user]
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...One notable design difference is that in Cassandra, every piece of data is handled by a quorum of independent peers, whereas in HBase, every piece of data is handled by a single process at a...
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Author: Ian Varley,
2013-01-22, 19:23
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Re: PROD/DR - Replication - HBase - [mail # user]
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...Ha - that's what I get for trying to answer list emails from my phone. :) Ian On Dec 7, 2012, at 1:58 PM, sriraam h wrote: Thanks Ian. I DID miss the point. The person who ...
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Author: Ian Varley,
2012-12-07, 20:03
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Re: PROD/DR - Replication - HBase - [mail # user]
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...Yes, I think so. A single HBase cluster can't (or, at least, really shouldn't) span multiple data centers; the strong consistency you refer to is only available within a cluster. But ...
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Author: Ian Varley,
2012-12-07, 19:51
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Re: PROD/DR - Replication - HBase - [mail # user]
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...Juan, No; that would mean every single write to HBase has to wait for an ACK from a remote data center, which would decrease your cluster throughput dramatically. If you need that, con...
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Author: Ian Varley,
2012-12-07, 18:19
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Re: 答复: 答复: how to store 100billion short text messages with hbase - HBase - [mail # user]
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...Tian, By sharding the table manually along the time dimension (which is what you're talking about: 365 * 24 different tables, one per hour), you can reduce the amount of data any one q...
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Author: Ian Varley,
2012-12-06, 13:40
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Re: 答复: how to store 100billion short text messages with hbase - HBase - [mail # user]
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...In this case, your best bet may be to come up with an ID structure for these messages that incorporates (leads with) the timestamp; then have Lucene use that as the key when retrieving any g...
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Author: Ian Varley,
2012-12-06, 03:44
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Re: how to store 100billion short text messages with hbase - HBase - [mail # user]
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...Tian, The best way to think about how to structure your data in HBase is to ask the question: "How will I access it?". Perhaps you could reply with the sorts of queries you expect to b...
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Author: Ian Varley,
2012-12-06, 03:00
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Re: Nosqls schema design - HBase - [mail # user]
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...Nick, Re: how to think about schemas coming from a SQL / Entity-Relationship background, there's a video of a talk I gave at HBaseCon this year on that subject, here: http://www....
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Author: Ian Varley,
2012-11-08, 15:22
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Re: Nosqls schema design - HBase - [mail # user]
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...Hi Nick, The key question to ask about this use case is the access pattern. Do you need real-time access to new information as it is created? (I.e. if someone reads an article, do your...
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Author: Ian Varley,
2012-11-08, 13:46
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Re: speaking of out-of-the-box configuration ... - HBase - [mail # dev]
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...Yes, file under packaging as it turns out. But, still file under "crappy out of the box experience". :) On Oct 19, 2012, at 4:02 PM, Andrew Purtell wrote: This was a ZK iss...
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Author: Ian Varley,
2012-10-19, 21:03
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