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[HDFS-6354] NN startup does not fail when it fails to login with the spnego principal
...I have noticed where the NN startup did not report any issues the login fails because either the keytab is wrong or the principal does not exist etc. This can be mis leading and lead to auth...
, 2014-05-27, 14:28
[HDFS-6127] WebHDFS tokens cannot be renewed in HA setup
...TokenAspect class assumes that the service name of the token is alway a host-ip pair. In HA setup, however, the service name becomes the name service id, which breaks the assumption. As a re...
, 2014-04-10, 14:12
[HDFS-6100] DataNodeWebHdfsMethods does not failover in HA mode
...In DataNodeWebHdfsMethods, the code creates a DFSClient to connect to the NN, so that it can access the files in the cluster. DataNodeWebHdfsMethods relies on the address passed in the URL t...
, 2014-03-21, 21:20
[HDFS-6089] Standby NN while transitioning to active throws a connection refused error when the prior active NN process is suspended
...The following scenario was tested: Determine Active NN and suspend the process (kill -19) Wait about 60s to let the standby transition to active Get the service state for nn1 and nn2 and mak...
, 2014-03-21, 15:06
[HDFS-6077] running slive with webhdfs on secure HA cluster fails with unkown host exception
...SliveTest fails with following. See the comment for more logs.SliveTest: Unable to run job due to error:java.lang.IllegalArgumentException: java.net.UnknownHostException: ha-2-secure&n...
, 2014-03-11, 14:59
[HDFS-5653] Log namenode hostname in various exceptions being thrown in a HA setup
...In a HA setup any time we see an exception such as safemode or namenode in standby etc we dont know which namenode it came from. The user has to go to the logs of the namenode and determine ...
, 2014-03-05, 22:25
confirm expected HA behavior
- [mail # dev]
...HiI have a scenario where i am trying to test how HDFS HA works in case of network issues. I used iptables to block requests to the rpc port 8020 in order to simulate that. Below is the some...
, 2014-02-05, 22:28
[HDFS-5842] Cannot create hftp filesystem when using a proxy user ugi and a doAs on a secure cluster
...Noticed this while debugging issues in another application. We saw an error when trying to do a FileSystem.get using an hftp file system on a secure cluster using a proxy user ugi.This is a ...
, 2014-01-28, 02:02
[HDFS-5291] Clients need to retry when Active NN is in SafeMode
...In our test, we saw NN immediately went into safemode after transitioning to active state. This can cause HBase region server to timeout and kill itself. We should allow clients to retry whe...
, 2013-10-13, 18:59
[HDFS-5335] DFSOutputStream#close() keeps throwing exceptions when it is called multiple times
...The semantic of DFSOutputStream#close() is incorrect.Close() will throw the last exception that it encounters during the flush operations when closing the stream. The exception that it remem...
, 2013-10-12, 05:12
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