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https://issues.apache.org/jira/browse/HBASE-17331?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15760299#comment-15760299
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stack commented on HBASE-17331:
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bq. I’m profiling the builtin export tools for the data migration, so I notice
the hotspot method "getBytesPerSec()".
This sounds interesting. You trying to make it all run faster? How did it show?
It was sleeping? And then how does this change manifest? Does stuff flow
smoother? Thanks [~chia7712]
> Avoid busy waiting in ThrottledInputStream
> ------------------------------------------
>
> Key: HBASE-17331
> URL: https://issues.apache.org/jira/browse/HBASE-17331
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 2.0.0
> Reporter: ChiaPing Tsai
> Assignee: ChiaPing Tsai
> Priority: Minor
> Fix For: 2.0.0
>
> Attachments: HBASE-17331.addendum.patch, HBASE-17331.v0.patch,
> HBASE-17331.v1.patch, HBASE-17331.v2.patch, HBASE-17331.v2.patch
>
>
> {code:title=ThrottledInputStream.java|borderStyle=solid}
> // We can calculate the precise sleep time instead of busy waiting
> private void throttle() throws IOException {
> while (getBytesPerSec() > maxBytesPerSec) {
> try {
> Thread.sleep(SLEEP_DURATION_MS);
> totalSleepTime += SLEEP_DURATION_MS;
> } catch (InterruptedException e) {
> throw new IOException("Thread aborted", e);
> }
> }
> }
> {code}
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