liang xie created HBASE-7495:
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Summary: parallel scanner seek in StoreScanner's constructor
Key: HBASE-7495
URL: https://issues.apache.org/jira/browse/HBASE-7495
Project: HBase
Issue Type: Bug
Components: Scanners
Affects Versions: 0.94.3, 0.96.0
Reporter: liang xie
Assignee: liang xie
seems there's a potential improvable space before doing scanner.next:
{code:title=StoreScanner.java|borderStyle=solid}
if (explicitColumnQuery && lazySeekEnabledGlobally) {
for (KeyValueScanner scanner : scanners) {
scanner.requestSeek(matcher.getStartKey(), false, true);
}
} else {
for (KeyValueScanner scanner : scanners) {
scanner.seek(matcher.getStartKey());
}
}
{code}
we can do scanner.requestSeek or scanner.seek in parallel, instead of current
serialization, to reduce latency for special case.
Any ideas on it ? I'll have a try if the comments/suggestions are positive：）
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