Lars Hofhansl created HBASE-12411:
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Summary: Avoid seek + read completely?
Key: HBASE-12411
URL: https://issues.apache.org/jira/browse/HBASE-12411
Project: HBase
Issue Type: Brainstorming
Reporter: Lars Hofhansl
In the light of HDFS-6735 we might want to consider refraining from seek + read
completely and only perform preads.
For example currently a compaction can lock out every other scanner over the
file which the compaction is currently reading for compaction.
At the very least we can introduce an option to avoid seek + read, so we can
allow testing this in various scenarios.
This will definitely be of great importance for projects like Phoenix which
parallelize queries intra region (and hence readers will used concurrently by
multiple scanner with high likelihood.)
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