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https://issues.apache.org/jira/browse/HDFS-16171?focusedWorklogId=637859&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-637859
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ASF GitHub Bot logged work on HDFS-16171:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 13/Aug/21 17:47
Start Date: 13/Aug/21 17:47
Worklog Time Spent: 10m
Work Description: virajjasani commented on a change in pull request #3280:
URL: https://github.com/apache/hadoop/pull/3280#discussion_r688683336
##########
File path:
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestDecommissioningStatus.java
##########
@@ -307,6 +323,59 @@ public void testDecommissionStatus() throws Exception {
AdminStatesBaseTest.cleanupFile(fileSys, file2);
}
+ protected void verifyInitialState(FSNamesystem fsn, DatanodeManager dm)
+ throws InterruptedException {
+ dm.getDatanodes().forEach(datanodeDescriptor -> {
+ try {
+ checkDecommissionStatus(datanodeDescriptor, 0, 0, 0);
+ } catch (TimeoutException | InterruptedException e) {
+ throw new AssertionError("Datanode not in good state.", e);
+ }
+ });
+ int c = 0;
+ int totalBlocks;
+ long totalReplicatedBlocks;
+ while (true) {
+ totalBlocks = fsn.getBlockManager().getTotalBlocks();
+ totalReplicatedBlocks = fsn.getBlockManager().getTotalReplicatedBlocks();
+ if (totalBlocks == 4 && totalReplicatedBlocks == 4) {
+ break;
+ } else {
+ if (c == 4) {
+ throw new AssertionError("Unexpected Total blocks " + totalBlocks
+ + " and replicated blocks " + totalReplicatedBlocks);
+ }
+ Thread.sleep(3000);
+ }
+ c++;
+ }
Review comment:
Also, keeping little complex logic of using counters (AtomicInteger as
counters inside lambda) to ensure all 8 blocks are present in all DNs (4 blocks
in each DN) would become even more complicated if we use
`GenericUtils.waitFor()` so I think keeping this way is still less complex.
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Issue Time Tracking
-------------------
Worklog Id: (was: 637859)
Time Spent: 1h 20m (was: 1h 10m)
> testDecommissionStatus is flaky (for both TestDecommissioningStatus and
> TestDecommissioningStatusWithBackoffMonitor)
> --------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-16171
> URL: https://issues.apache.org/jira/browse/HDFS-16171
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Viraj Jasani
> Assignee: Viraj Jasani
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1h 20m
> Remaining Estimate: 0h
>
> testDecommissionStatus keeps failing intermittently.
> {code:java}
> [ERROR]
> testDecommissionStatus(org.apache.hadoop.hdfs.server.namenode.TestDecommissioningStatusWithBackoffMonitor)
> Time elapsed: 3.299 s <<< FAILURE!
> java.lang.AssertionError: Unexpected num under-replicated blocks expected:<4>
> but was:<3>
> at org.junit.Assert.fail(Assert.java:89)
> at org.junit.Assert.failNotEquals(Assert.java:835)
> at org.junit.Assert.assertEquals(Assert.java:647)
> at
> org.apache.hadoop.hdfs.server.namenode.TestDecommissioningStatus.checkDecommissionStatus(TestDecommissioningStatus.java:169)
> at
> org.apache.hadoop.hdfs.server.namenode.TestDecommissioningStatusWithBackoffMonitor.testDecommissionStatus(TestDecommissioningStatusWithBackoffMonitor.java:136)
> {code}
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