If you have Kerberos enabled, you might be hitting: https://issues.apache.org/jira/browse/AMBARI-14847 You can upgrade to Ambari 2.2.2 and that should resolve the issue. ... View more

Good find! Here's a copy of the workaround: Replace /var/lib/knox/data/services/yarn-ui/2.7.1/rewrite.xml with the attached rewrite.xml (change ownership to knox:knox) Restart Knox Note that "data" might be version-specific (e.g. data-2.4.2.0-258), or you can use /usr/hdp/current/knox-server/data/ instead. The fixed rewrite.xml is attached. ... View more

@Ana Gillan @Sagar Shimpi Thanks, got partial resolution. Ranger Hive plugin applies only to Hiveserver2 and not to CLI. But in below mentioned hive table file, how user mktg1 is able to query it using HIVE CLI? [hive@sandbox ~]$ hadoop fs -ls /apps/hive/warehouse/xademo.db/customer_details/acct.txt ---------- 3 hive hdfs 1532 2016-03-14 14:52 /apps/hive/warehouse/xademo.db/customer_details/acct.txt [mktg1@sandbox ~]$ hive hive> use xademo; OK Time taken: 1.737 seconds hive> select * from customer_details limit 10; OK PHONE_NUM PLAN REC_DATE STAUS BALANCE IMEI REGION 5553947406 6290 20130328 31 0 012565003040464 R06 7622112093 2316 20120625 21 28 359896046017644 R02 5092111043 6389 20120610 21 293 012974008373781 R06 9392254909 4002 20110611 21 178 357004045763373 R04 7783343634 2276 20121214 31 0 354643051707734 R02 5534292073 6389 20120223 31 83 359896040168211 R06 9227087403 4096 20081010 31 35 356927012514661 R04 9226203167 4060 20060527 21 450 010589003666377 R04 9221154050 4107 20100811 31 3 358665019197977 R04 Time taken: 6.467 seconds, Fetched: 10 row(s) ... View more

I had to unkerberize and rekerberize the cluster, now it works! ... View more

Hi finally the problem was about the directory permission /var/run/ambari-server on the namenode I did: chown -R ambari:ambari /var/run/ambari-server ... View more

This is a short term fix. The problem continues to occur. Is there a permanent solution? ... View more

my assumption was correct the datanodes (prbly everynode) will have a uuid which was same and hence this issue, i removed the install software, diectories and files, then reregisterd which worked fine later ... View more

There are a number of things that cause HDFS imbalance. This post explains some of those causes in more detail. The balancer should be run regularly in a production system (you can kick it off from the command line, so you can schedule it using cron, for example). The balancer can take a while to complete if there are a lot of blocks to move. Note that, when HDFS moves a block, the old block gets "marked for deletion" but doesn't get deleted immediately. HDFS deals with these un-used blocks over time. ... View more

@Anandha L Ranganathan I will recommend to contact hortonworks support for such cases. ... View more