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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-1278) Make bulk loading into Cassandra less crappy, more pluggable
Date Mon, 11 Apr 2011 20:30:06 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-1278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13018554#comment-13018554
] 

Jonathan Ellis commented on CASSANDRA-1278:
-------------------------------------------

go ahead and use git to split this up into logical pieces (e.g., internals changes, proxy
server, tests).

where does throughput max out in rows/s as you add clients (proxy nodes), vs stress-against-plain-cassandra?

> Make bulk loading into Cassandra less crappy, more pluggable
> ------------------------------------------------------------
>
>                 Key: CASSANDRA-1278
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1278
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Tools
>            Reporter: Jeremy Hanna
>            Assignee: Matthew F. Dennis
>             Fix For: 0.7.5
>
>         Attachments: 1278-cassandra-0.7-v2.txt, 1278-cassandra-0.7.1.txt, 1278-cassandra-0.7.txt
>
>   Original Estimate: 40h
>          Time Spent: 40h 40m
>  Remaining Estimate: 0h
>
> Currently bulk loading into Cassandra is a black art.  People are either directed to
just do it responsibly with thrift or a higher level client, or they have to explore the contrib/bmt
example - http://wiki.apache.org/cassandra/BinaryMemtable  That contrib module requires delving
into the code to find out how it works and then applying it to the given problem.  Using either
method, the user also needs to keep in mind that overloading the cluster is possible - which
will hopefully be addressed in CASSANDRA-685
> This improvement would be to create a contrib module or set of documents dealing with
bulk loading.  Perhaps it could include code in the Core to make it more pluggable for external
clients of different types.
> It is just that this is something that many that are new to Cassandra need to do - bulk
load their data into Cassandra.

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