Ted Yu created HBASE-19052:
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Summary: Backport CellComparatorImpl related changes to branch-1.x
Key: HBASE-19052
URL: https://issues.apache.org/jira/browse/HBASE-19052
Project: HBase
Issue Type: Bug
Reporter: Ted Yu
HBASE-18945 has gone into branch-2 .
Let's consider rolling upgrade scenario from 1.x to 2.0 where there're three
servers: s1, s2, s3
s1 is upgraded to 2.0 first. It flushes to hfile in region r1 with
CellComparatorImpl written in the hfile trailer.
Somehow s1 crashes and master assigns r1 to s2 which is still running 1.x
The following code in FixedFileTrailer would be triggered:
{code}
try {
comparatorKlass = (Class<? extends CellComparator>)
Class.forName(comparatorClassName);
} catch (ClassNotFoundException e) {
throw new IOException(e);
}
{code}
since s2 is not aware of CellComparatorImpl.
This issue is to backport CellComparatorImpl related change to branch-1.x
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