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Posted to dev@hbase.apache.org by "Samarth Jain (JIRA)" <ji...@apache.org> on 2017/03/02 17:48:53 UTC
[jira] [Resolved] (HBASE-17714) Client heartbeats seems to be
broken
[ https://issues.apache.org/jira/browse/HBASE-17714?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Samarth Jain resolved HBASE-17714.
----------------------------------
Resolution: Not A Bug
> Client heartbeats seems to be broken
> ------------------------------------
>
> Key: HBASE-17714
> URL: https://issues.apache.org/jira/browse/HBASE-17714
> Project: HBase
> Issue Type: Bug
> Reporter: Samarth Jain
>
> We have a test in Phoenix where we introduce an artificial sleep of 2 times the RPC timeout in preScannerNext() hook of a co-processor.
> {code}
> public static class SleepingRegionObserver extends SimpleRegionObserver {
> public SleepingRegionObserver() {}
>
> @Override
> public boolean preScannerNext(final ObserverContext<RegionCoprocessorEnvironment> c,
> final InternalScanner s, final List<Result> results,
> final int limit, final boolean hasMore) throws IOException {
> try {
> if (SLEEP_NOW && c.getEnvironment().getRegion().getRegionInfo().getTable().getNameAsString().equals(TABLE_NAME)) {
> Thread.sleep(RPC_TIMEOUT * 2);
> }
> } catch (InterruptedException e) {
> throw new IOException(e);
> }
> return super.preScannerNext(c, s, results, limit, hasMore);
> }
> }
> {code}
> This test was passing fine till 1.1.3 but started failing sometime before 1.1.9 with an OutOfOrderScannerException. See PHOENIX-3702. [~lhofhansl] mentioned that we have client heartbeats enabled and that should prevent us from running into issues like this. FYI, this test fails with 1.2.3 version of HBase too.
> CC [~apurtell], [~jamestaylor]
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