[
https://issues.apache.org/jira/browse/HDFS-15672?focusedWorklogId=514249&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-514249
]
ASF GitHub Bot logged work on HDFS-15672:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 19/Nov/20 17:59
Start Date: 19/Nov/20 17:59
Worklog Time Spent: 10m
Work Description: iwasakims opened a new pull request #2475:
URL: https://github.com/apache/hadoop/pull/2475
https://issues.apache.org/jira/browse/HDFS-15672
The setting of testBalancingBlockpoolsWithBlockPoolPolicy is
* 2 NameNodes (2 name spaces)
* 4 DataNodes (with 500 bytes capacity per node)
* blocksize = 100, replication factor = 2
* creating 300 bytes file on both name spaces (6 blocks total)
* add 2 DataNodes (with 500 bytes capacity per node)
* running balancer
If one of the DataNode is chosen for all 6 blocks, no free space is
available. The error causes retry of block creation.
```
2020-11-18 06:01:36,648 [DataXceiver for client
DFSClient_NONMAPREDUCE_1983766438_12 at /127.0.0.1:46158 [Receiving block
BP-631108559-172.31.197.233-1605679293748:blk_1073741827_1003]] ERROR
datanode.DataNode (DataXceiver.java:run(324)) - host1.foo.com:43495:DataXceiver
error processing WRITE_BLOCK operation src: /127.0.0.1:46158 dst:
/127.0.0.1:43495
java.io.IOException: Creating block, no free space available
```
The garbage breaks assertion about total used space.
```
2020-11-18 06:01:37,361 [Listener at localhost/43281] INFO
balancer.Balancer (TestBalancerWithMultipleNameNodes.java:runBalancer(172)) -
BALANCER 0: totalUsed=1200, totalCapacity=3000, avg=40.0
2020-11-18 06:01:37,361 [Listener at localhost/43281] INFO
balancer.Balancer (TestBalancerWithMultipleNameNodes.java:wait(151)) - WAIT
expectedUsedSpace=1200, expectedTotalSpace=3000
...(snip)
2020-11-18 06:01:47,372 [Listener at localhost/43281] WARN
balancer.Balancer (TestBalancerWithMultipleNameNodes.java:wait(161)) - WAIT
i=100, s=[3000, 1300]
```
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Issue Time Tracking
-------------------
Worklog Id: (was: 514249)
Remaining Estimate: 0h
Time Spent: 10m
> TestBalancerWithMultipleNameNodes#testBalancingBlockpoolsWithBlockPoolPolicy
> fails on trunk
> -------------------------------------------------------------------------------------------
>
> Key: HDFS-15672
> URL: https://issues.apache.org/jira/browse/HDFS-15672
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Ahmed Hussein
> Assignee: Masatake Iwasaki
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> qbt report shows the following error:
> {code:bash}
> org.apache.hadoop.hdfs.server.balancer.TestBalancerWithMultipleNameNodes.testBalancingBlockpoolsWithBlockPoolPolicy
> Failing for the past 1 build (Since Failed#317 )
> Took 10 min.
> Error Message
> test timed out after 600000 milliseconds
> Stacktrace
> org.junit.runners.model.TestTimedOutException: test timed out after 600000
> milliseconds
> at java.lang.Thread.sleep(Native Method)
> at
> org.apache.hadoop.hdfs.server.balancer.TestBalancerWithMultipleNameNodes.sleep(TestBalancerWithMultipleNameNodes.java:353)
> at
> org.apache.hadoop.hdfs.server.balancer.TestBalancerWithMultipleNameNodes.wait(TestBalancerWithMultipleNameNodes.java:159)
> at
> org.apache.hadoop.hdfs.server.balancer.TestBalancerWithMultipleNameNodes.runBalancer(TestBalancerWithMultipleNameNodes.java:175)
> at
> org.apache.hadoop.hdfs.server.balancer.TestBalancerWithMultipleNameNodes.runTest(TestBalancerWithMultipleNameNodes.java:550)
> at
> org.apache.hadoop.hdfs.server.balancer.TestBalancerWithMultipleNameNodes.testBalancingBlockpoolsWithBlockPoolPolicy(TestBalancerWithMultipleNameNodes.java:609)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
> at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
> at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> at
> org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)
> at
> org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at java.lang.Thread.run(Thread.java:748)
> {code}
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