[
https://issues.apache.org/jira/browse/HBASE-17714?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15891301#comment-15891301
]
Samarth Jain commented on HBASE-17714:
--------------------------------------
Thanks for the investigation, [~apurtell]. I will make config changes in the
test to increase the frequency of heartbeat checks and to see if enabling
renewing leases would help. For the latter, my guess is that it wouldn't help
because the call to renew lease is synchronized from the client side and would
be blocked till scanner.next() returns.
> 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]
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
