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https://issues.apache.org/jira/browse/CASSANDRA-10347?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14933906#comment-14933906
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Shenghua Wan commented on CASSANDRA-10347:
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First thank you for looking into this issue.
[~pauloricardomg] To you question, I have not tried
mapreduce.output.bulkoutputformat.maxfailedhosts property. I have read the
source code and thought this property only gave up when certain number of host
connections failed. However, I still want the streaming continue if there exist
some hosts alive, even exceeding the threshold. Therefore, to solve the problem
of my use case (skip connecting to lost hosts), I have implemented something
just like "mapreduce.output.bulkoutputformat.ignorehosts" property, e.g.
> Bulk Loader API could not tolerate even node failure
> ----------------------------------------------------
>
> Key: CASSANDRA-10347
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10347
> Project: Cassandra
> Issue Type: Bug
> Reporter: Shenghua Wan
> Assignee: Paulo Motta
> Fix For: 2.1.x, 2.2.x, 3.0.x
>
>
> When user uses CqlBulkOutputFormat, it tries to stream to all the nodes in
> the token range, which includes the dead nodes. Therefore, the stream failed.
> There was a design in C* API to allow stream() method to have a list of
> ignore hosts, but it was not utilized.
> The empty-argument stream() method is called in all existing versions of C*,
> i.e.
> in v2.0.11,
> https://github.com/apache/cassandra/blob/cassandra-2.0.11/src/java/org/apache/cassandra/hadoop/AbstractBulkRecordWriter.java#L122
> in v2.1.5,
> https://github.com/apache/cassandra/blob/cassandra-2.1.5/src/java/org/apache/cassandra/hadoop/AbstractBulkRecordWriter.java#L122
> and current trunk branch
> https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/hadoop/cql3/CqlBulkRecordWriter.java#L241
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