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https://issues.apache.org/jira/browse/HBASE-14605?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14959913#comment-14959913
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Andrew Purtell commented on HBASE-14605:
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bq. The changes to call the coprocessor hooks as request user would apply to
all coprocessor implementations, even custom coprocessors.
This is a bit tricky. I think it can evolve as we fix these issues.
Documentation in javadoc for each coprocessor hook on what user context the
code will execute in would be good though. Should be a follow up issue.
> Split fails due to 'No valid credentials' error when
> SecureBulkLoadEndpoint#start tries to access hdfs
> ------------------------------------------------------------------------------------------------------
>
> Key: HBASE-14605
> URL: https://issues.apache.org/jira/browse/HBASE-14605
> Project: HBase
> Issue Type: Bug
> Reporter: Ted Yu
> Assignee: Ted Yu
> Attachments: 144605-branch-1-v3.txt, 14605-v1.txt, 14605-v2.txt,
> 14605-v3.txt, 14605-v3.txt, 14605-v3.txt, 14605.alt
>
>
> During recent testing in secure cluster (with HBASE-14475), we found the
> following when user X (non-super user) split a table with region replica:
> {code}
> 2015-10-12 10:58:18,955 ERROR [FifoRpcScheduler.handler1-thread-9]
> master.HMaster: Region server hbase-4-4.novalocal,60020,1444645588137
> reported a fatal error:
> ABORTING region server hbase-4-4.novalocal,60020,1444645588137: The
> coprocessor org.apache.hadoop.hbase.security.access.SecureBulkLoadEndpoint
> threw an unexpected exception
> Cause:
> java.lang.IllegalStateException: Failed to get FileSystem instance
> at
> org.apache.hadoop.hbase.security.access.SecureBulkLoadEndpoint.start(SecureBulkLoadEndpoint.java:148)
> at
> org.apache.hadoop.hbase.coprocessor.CoprocessorHost$Environment.startup(CoprocessorHost.java:415)
> at
> org.apache.hadoop.hbase.coprocessor.CoprocessorHost.loadInstance(CoprocessorHost.java:257)
> at
> org.apache.hadoop.hbase.coprocessor.CoprocessorHost.loadSystemCoprocessors(CoprocessorHost.java:160)
> at
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.<init>(RegionCoprocessorHost.java:192)
> at org.apache.hadoop.hbase.regionserver.HRegion.<init>(HRegion.java:701)
> at org.apache.hadoop.hbase.regionserver.HRegion.<init>(HRegion.java:608)
> ...
> Caused by: java.io.IOException: Failed on local exception:
> java.io.IOException: javax.security.sasl.SaslException: GSS initiate failed
> [Caused by GSSException: No valid credentials provided (Mechanism
> level: Failed to find any Kerberos tgt)]; Host Details : local host is:
> "hbase-4-4/172.22.66.186"; destination host is: "os-r6-
> okarus-hbase-4-2.novalocal":8020;
> at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:772)
> at org.apache.hadoop.ipc.Client.call(Client.java:1473)
> at org.apache.hadoop.ipc.Client.call(Client.java:1400)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:232)
> at com.sun.proxy.$Proxy18.mkdirs(Unknown Source)
> at
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.mkdirs(ClientNamenodeProtocolTranslatorPB.java:555)
> at sun.reflect.GeneratedMethodAccessor13.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:187)
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
> at com.sun.proxy.$Proxy19.mkdirs(Unknown Source)
> at org.apache.hadoop.hdfs.DFSClient.primitiveMkdir(DFSClient.java:2775)
> at org.apache.hadoop.hdfs.DFSClient.mkdirs(DFSClient.java:2746)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$19.doCall(DistributedFileSystem.java:967)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$19.doCall(DistributedFileSystem.java:963)
> at
> org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
> {code}
> The cause was that SecureBulkLoadEndpoint#start tried to create staging dir
> in hdfs as user X but didn't pass authentication.
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