# Error connecting hdfs

**URL:** <https://community.dremio.com/t/error-connecting-hdfs/3180>\
**Category:** Uncategorized\
**Created:** [April 15, 2019, 7:53am UTC](https://community.dremio.com/t/error-connecting-hdfs/3180 "2019-04-15T07:53:36Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![abhba](https://avatars.discourse-cdn.com/v4/letter/a/49beb7/32.png) [@abhba](https://community.dremio.com/u/abhba)\
**Post date:** [April 15, 2019, 7:53am UTC](https://community.dremio.com/t/error-connecting-hdfs/3180/1 "2019-04-15T07:53:36Z")

</div>

I am getting this error while connecting to hdfs with dremio .  
Caused by: java.util.concurrent.ExecutionException: java.lang.Exception: Unavailable: 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: “devupgnew4/10.26.37.151”; destination host is: “[devupgnew1.azure.ril.com](http://devupgnew1.azure.ril.com)”:8020;  
at com.google.common.util.concurrent.AbstractFuture.getDoneValue(AbstractFuture.java:500) ~[guava-20.0.jar:na]  
at com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:401) ~[guava-20.0.jar:na]  
at com.google.common.util.concurrent.AbstractFuture$TrustedFuture.get(AbstractFuture.java:83) ~[guava-20.0.jar:na]  
at com.google.common.util.concurrent.ForwardingFuture.get(ForwardingFuture.java:68) ~[guava-20.0.jar:na]  
at com.google.common.util.concurrent.AbstractCheckedFuture.checkedGet(AbstractCheckedFuture.java:104) ~[guava-20.0.jar:na]  
at com.dremio.exec.catalog.CatalogServiceImpl.createOrUpdateSource(CatalogServiceImpl.java:627) [dremio-sabot-kernel-3.1.7-201903210426240688-c843b51.jar:3.1.7-201903210426240688-c843b51]  
… 54 common frames omitted  
Caused by: java.lang.Exception: Unavailable: 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: “devupgnew4/10.26.37.151”; destination host is: “[devupgnew1.azure.ril.com](http://devupgnew1.azure.ril.com)”:8020;  
at com.dremio.exec.catalog.ManagedStoragePlugin$1.run(ManagedStoragePlugin.java:261) ~[dremio-sabot-kernel-3.1.7-201903210426240688-c843b51.jar:3.1.7-201903210426240688-c843b51]  
at com.dremio.concurrent.RenamingRunnable.run(RenamingRunnable.java:36) ~[dremio-common-3.1.7-201903210426240688-c843b51.jar:3.1.7-201903210426240688-c843b51]  
at com.dremio.concurrent.SingletonRunnable.run(SingletonRunnable.java:41) ~[dremio-common-3.1.7-201903210426240688-c843b51.jar:3.1.7-201903210426240688-c843b51]  
at com.dremio.concurrent.SafeRunnable.run(SafeRunnable.java:40) ~[dremio-common-3.1.7-201903210426240688-c843b51.jar:3.1.7-201903210426240688-c843b51]  
at com.dremio.concurrent.Runnables$1.run(Runnables.java:45) ~[dremio-common-3.1.7-201903210426240688-c843b51.jar:3.1.7-201903210426240688-c843b51]  
(END)

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<div class="post-metadata">

**Author:** ![balaji.ramaswamy](https://sea2.discourse-cdn.com/flex020/user_avatar/community.dremio.com/balaji.ramaswamy/32/843_2.png) [@balaji.ramaswamy](https://community.dremio.com/u/balaji.ramaswamy)\
**Post date:** [April 28, 2019, 2:27am UTC](https://community.dremio.com/t/error-connecting-hdfs/3180/2 "2019-04-28T02:27:29Z")

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Hi @abhba

Can we check if the Dremio keytab has the right permissions?

[Dremio - Kerberos](https://docs.dremio.com/deployment/yarn-hadoop.html#kerberos)

Thanks  
@balaji.ramaswamy