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https://issues.apache.org/jira/browse/MAPREDUCE-6761?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15428281#comment-15428281
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Kuhu Shukla commented on MAPREDUCE-6761:
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Thank you [~pvary] for catching this issue and the patch. The try-catch change
looks good to me. Agree with [~rchiang] on test changes.
> Regression when handling providers - invalid configuration
> ServiceConfiguration causes Cluster initialization failure
> ---------------------------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-6761
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6761
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 3.0.0-alpha2
> Reporter: Peter Vary
> Assignee: Peter Vary
> Labels: supportability
> Attachments: MAPREDUCE-6761.2.patch, MAPREDUCE-6761.patch
>
>
> When a rogue org.apache.hadoop.mapreduce.protocol.ClientProtocolProvider
> defines a provider that is not on classpath, then the initialization is
> failed with the following exception:
> java.util.ServiceConfigurationError:
> org.apache.hadoop.mapreduce.protocol.ClientProtocolProvider: Provider
> org.apache.hadoop.mapred.YarnClientProtocolProvider not found
> at java.util.ServiceLoader.fail(ServiceLoader.java:239)
> at java.util.ServiceLoader.access$300(ServiceLoader.java:185)
> at
> java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:372)
> at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:404)
> at java.util.ServiceLoader$1.next(ServiceLoader.java:480)
> at org.apache.hadoop.mapreduce.Cluster.initProviderList(Cluster.java:84)
> at org.apache.hadoop.mapreduce.Cluster.initialize(Cluster.java:114)
> at org.apache.hadoop.mapreduce.Cluster.<init>(Cluster.java:108)
> at org.apache.hadoop.mapreduce.Cluster.<init>(Cluster.java:101)
> at org.apache.hadoop.mapred.JobClient.init(JobClient.java:477)
> at org.apache.hadoop.mapred.JobClient.<init>(JobClient.java:455)
> This regression is caused by MAPREDUCE-6473
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