Keith Turner created ACCUMULO-740:
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Summary: Infinite loop in RFile code
Key: ACCUMULO-740
URL: https://issues.apache.org/jira/browse/ACCUMULO-740
Project: Accumulo
Issue Type: Bug
Reporter: Keith Turner
Fix For: 1.5.0
Saw an infinite loop in RFile code when new on demand indexing was turned on
and table contained zero length values. I think this is only an issue in
trunk, but need to analyze 1.4 code to make sure it does not happen.
The problematic code is
{noformat}
org.apache.accumulo.core.file.rfile.RelativeKey.read(DataInput in,
MByteSequence mbseq, int len){...}
{noformat}
When the input mbseq is backed by a zero length array, an infinite loop will
occur. Also noticed that the code could overflow the integer and cause an
inifinite loop (a key or value > 2^30 would be needed to trigger this). I
suspect 1.4 will never generate an input that will cause the infinite loop, but
I am not 100% sure about this.
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