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Posted to issues@hbase.apache.org by GitBox <gi...@apache.org> on 2020/08/02 04:09:59 UTC
[GitHub] [hbase] busbey commented on pull request #2180: HBASE-24805 HBaseTestingUtility.getConnection should be threadsafe
busbey commented on pull request #2180:
URL: https://github.com/apache/hbase/pull/2180#issuecomment-667624039
I do not know why the precommit job on ci-hadoop ran multiple jobs for this PR, but in run number 2 this was the failure:
```
[INFO]
[ERROR] Errors:
[ERROR] org.apache.hadoop.hbase.client.TestFromClientSideWithCoprocessor5.testScanMetrics[1]
[ERROR] Run 1: TestFromClientSideWithCoprocessor5>TestFromClientSide5.testScanMetrics:989 Did not count the result bytes expected:<60> but was:<180>
[ERROR] Run 2: TestFromClientSideWithCoprocessor5>TestFromClientSide5.testScanMetrics:922 » IO
[ERROR] Run 3: TestFromClientSideWithCoprocessor5>TestFromClientSide5.testScanMetrics:922 » IO
```
in run number three there were no failures.
Looking at [the test ouput for TestFromClientSideWithCoprocessor5](https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-2180/2/artifact/yetus-jdk8-hadoop3-check/output/archiver/hbase-server/target/surefire-reports/org.apache.hadoop.hbase.client.TestFromClientSideWithCoprocessor5-output.txt), I don't think there's enough detail to figure out what happened.
It looks like the final two were loss of ZK under load:
```
-------------------------------------------------------------------------------
Test set: org.apache.hadoop.hbase.client.TestFromClientSideWithCoprocessor5
-------------------------------------------------------------------------------
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 332.892 s <<< FAILURE! - in org.apache.hadoop.hbase.client.TestFromClientSideWithCoprocessor5
org.apache.hadoop.hbase.client.TestFromClientSideWithCoprocessor5.testScanMetrics[1] Time elapsed: 33.18 s <<< ERROR!
java.io.IOException: org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase/hbaseid
Caused by: org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase/hbaseid
```
If I had to guess I'd say in the first case maybe we have a retry mechanism that can recount scan metrics?
In any case I am reasonably certain these failures are not related to the test change here.
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