Lars Hofhansl created HBASE-6579:
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Summary: Unnecessary KV order check in StoreScanner
Key: HBASE-6579
URL: https://issues.apache.org/jira/browse/HBASE-6579
Project: HBase
Issue Type: Bug
Reporter: Lars Hofhansl
Priority: Minor
Fix For: 0.96.0, 0.94.2
In StoreScanner.next(List<KeyValue>, int, String) I find this code:
{code}
// Check that the heap gives us KVs in an increasing order.
if (prevKV != null && comparator != null
&& comparator.compare(prevKV, kv) > 0) {
throw new IOException("Key " + prevKV + " followed by a " +
"smaller key " + kv + " in cf " + store);
}
prevKV = kv;
{code}
So this checks for bugs in the HFiles or the scanner code. It needs to compare
each KVs with its predecessor. This seems unnecessary now, I propose that we
remove this.
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