[CASSANDRA-2245] Enable map reduce to use indexes for ColumnFamilyInputFormat - ASF JIRA

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Details

Type: Improvement
Status: Resolved
Priority: Low
Resolution: Duplicate
Fix Version/s: 0.8 beta 1
Component/s: None
Labels:
- hadoop
Environment:

Cassandra 0.7 or later and Hadoop 0.20.1 or later

Description

Enable the ability to run a MapReduce job that takes a value in an indexed column as a parameter, and use that to select the data that the MapReduce job operates on. Right now, it looks like this isn't possible because org.apache.cassandra.hadoop.ColumnFamilyRecordReader will only fetch data with get_range_slices, not get_indexed_slices.

Attachments

Issue Links

blocks

CASSANDRA-2246 Enable Pig to use indexed data as described in CASSANDRA-2245

Resolved

duplicates

CASSANDRA-2878 Allow map/reduce to use server-side query filters

Resolved

CASSANDRA-1125 Filter out ColumnFamily rows that aren't part of the query (using a KeyRange)

Resolved

Activity

People

Assignee:: Unassigned

Reporter:: Matt Kennedy

Votes:: 1 Vote for this issue

Watchers:: 4 Start watching this issue

Dates

Created:: 25/Feb/11 00:37

Updated:: 16/Apr/19 09:33

Resolved:: 18/Mar/11 13:50

Time Tracking

Estimated:

72h

Remaining:

72h

Logged:

Not Specified