Secondary Indexes Build Very Slowly
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Key: CASSANDRA-2470
URL: https://issues.apache.org/jira/browse/CASSANDRA-2470
Project: Cassandra
Issue Type: Improvement
Reporter: Benjamin Coverston
While running repair I noticed that the time it took to run was easily
dominated by building the secondary indexes. They currently build at a rate of
< 200KB/Second. This means that indexing a 500MB file takes nearly an hour to
index the file.
Because this happens on the compaction thread it also causes repair to back up
in general, which for very active systems is a very bad thing.
I suggest we look at it in the hope that we can improve the rate in which we
build the indexes by an order of magnitude.
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