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02-18-2019
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06-16-2021
12:22 AM
Hi @salimhussain Enable Impala Audit Event Generation property was already unchecked, for patching activity we had to bring down the cluster and start it back, so I hope that this counts as a restart of Impala too? If it does, then we still have logs getting generated. Thanks Amn
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06-05-2021
02:38 AM
Hello @Sean464 Hue is already installed kt renewer service is also running fine/green. We noticed this post our upgrade from 5.16.x to 6.3.x So can I follow the steps mentioned by @nthomas? Thanks Amn
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06-01-2021
08:47 PM
Hello, I am getting the below error when trying to check logs via CM for Hue Kerberos Ticket Renewer. CM / CDH - 6.3.3 I checked / /var/log/hue but did not find kt_renewer.log. Appreciate any assistance to fix this. Thanks Amn
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05-31-2021
12:55 AM
Hello, I need some assistance / guidance related to Impala Audit & Lineage Logs. In our cluster I see Impala Audit Logs (enable_audit_event_log) Un-checked, yet on the node level we see logs getting generated. [service1@myserver audit]# ls -ltrh
total 215M
-rw-r--r-- 1 impala impala 4.2M May 27 14:45 impala_audit_event_log_1.0-1622078304372
-rw-r--r-- 1 impala impala 3.9M May 27 15:34 impala_audit_event_log_1.0-1622083537006
-rw-r--r-- 1 impala impala 4.3M May 27 16:44 impala_audit_event_log_1.0-1622086468134
-rw-r--r-- 1 impala impala 4.3M May 27 17:18 impala_audit_event_log_1.0-1622090691805
-rw-r--r-- 1 impala impala 4.3M May 27 18:26 impala_audit_event_log_1.0-1622092726630
-rw-r--r-- 1 impala impala 4.2M May 27 20:07 impala_audit_event_log_1.0-1622096799288
-rw-r--r-- 1 impala impala 4.0M May 27 21:17 impala_audit_event_log_1.0-1622102850640
-rw-r--r-- 1 impala impala 3.7M May 28 01:36 impala_audit_event_log_1.0-1622107032783
-rw-r--r-- 1 impala impala 2.7M May 28 14:34 impala_audit_event_log_1.0-1622122581046
-rw-r--r-- 1 impala impala 4.7M May 28 18:17 impala_audit_event_log_1.0-1622169268919
-rw-r--r-- 1 impala impala 4.3M May 28 19:34 impala_audit_event_log_1.0-1622182634220
-rw-r--r-- 1 impala impala 4.3M May 28 20:30 impala_audit_event_log_1.0-1622187283341
-rw-r--r-- 1 impala impala 4.3M May 28 20:58 impala_audit_event_log_1.0-1622190632083
-rw-r--r-- 1 impala impala 4.4M May 28 21:25 impala_audit_event_log_1.0-1622192312991 Could anyone please share some light as to why this is happening? I was under the impression that if this is checked only then logs would get captured, kindly clarify CM / CDH – 6.3.3 Thanks Amn
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05-02-2021
07:45 PM
Hi @amk Hi, When I go to /var/lib/cloudera-scm-headlamp/hdfs/ I see the below listed : [nm1@myserver hdfs]# ls -ltr -rw-r----- 1 cloudera-scm cloudera-scm 710967007 Jan 29 23:35 fsimage -rw-r----- 1 cloudera-scm cloudera-scm 25680 Jan 29 23:44 aggregates drwxr-x--- 2 cloudera-scm cloudera-scm 8192 Jan 29 23:44 index -rw-r----- 1 cloudera-scm cloudera-scm 468901714 May 3 14:26 fsimage.tmp Are you suggesting that I move everything that is inside hdfs folder to tmp location that then start Rman server? Kindly confirm. Thanks Amn
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04-15-2021
12:20 AM
Hello, I was trying to take report from HDFS Report and get the below message Upon checking /var/log/cloudera-scm-headlamp and see the following error 021-04-15 18:09:44,934 ERROR com.cloudera.headlamp.HeadlampIndexManager: Index build failed for service hdfs
java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.lang.RuntimeException: java.io.IOException: Unsupported layout version -64
at java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.util.concurrent.FutureTask.get(FutureTask.java:192)
at com.cloudera.headlamp.AbstractIndexBuilder.buildIndex(AbstractIndexBuilder.java:80)
at com.cloudera.headlamp.HeadlampIndex.buildIndex(HeadlampIndex.java:257)
at com.cloudera.headlamp.HeadlampIndex.reindex(HeadlampIndex.java:325)
at com.cloudera.headlamp.HeadlampIndexManager.reindexIndexes(HeadlampIndexManager.java:240)
at com.cloudera.headlamp.HeadlampIndexManager.access$100(HeadlampIndexManager.java:57)
at com.cloudera.headlamp.HeadlampIndexManager$1.run(HeadlampIndexManager.java:494)
Caused by: java.lang.RuntimeException: java.lang.RuntimeException: java.io.IOException: Unsupported layout version -64
at com.cloudera.headlamp.AbstractIndexBuilder$1.run(AbstractIndexBuilder.java:74)
at com.cloudera.cmf.cdhclient.CdhExecutor$RunnableWrapper.call(CdhExecutor.java:221)
at com.cloudera.cmf.cdhclient.CdhExecutor$RunnableWrapper.call(CdhExecutor.java:211)
at com.cloudera.cmf.cdhclient.CdhExecutor$CallableWrapper.doWork(CdhExecutor.java:236)
at com.cloudera.cmf.cdhclient.CdhExecutor$1.call(CdhExecutor.java:125)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.RuntimeException: java.io.IOException: Unsupported layout version -64
at com.cloudera.headlamp.IndexBuilderCDH.buildIndexImpl(IndexBuilderCDH.java:77)
at com.cloudera.headlamp.AbstractIndexBuilder$1.run(AbstractIndexBuilder.java:72)
... 8 more
Caused by: java.io.IOException: Unsupported layout version -64
at org.apache.hadoop.hdfs.server.namenode.FSImageUtil.loadSummary(FSImageUtil.java:75)
at org.apache.hadoop.hdfs.tools.offlineImageViewer.CdhClientPBImageViewer.go(CdhClientPBImageViewer.java:113)
at com.cloudera.headlamp.IndexBuilderCDH.buildIndexImpl(IndexBuilderCDH.java:70)
... 9 more CM / CDH - 6.3.3 Appreciate any help / guidance in fixing this issue . Thanks Amn
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03-26-2021
04:25 AM
Hello, Need some assistance / guidance on how we can reduce Non-HDFS Space. We see Non-HDFS Space of around 270 used, as we are facing space crunch, we would explore possibilities for getting non-hdfs space reduced. I have cleared all Yarn logs for the applications which were killed/ failed etc (our /data mountpoint houses dfs, yarn, kudu, impala), yet this does not solve our issue. Any assistance / guidance is much appreciated. Thanks Amn
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03-23-2021
09:17 PM
Hello, We are getting alerts for Block Count on one of our data nodes as it has crossed the threshold of 10000. Since HDFS balancer did not fix the issue, the next thing I turned my focus to see if we are hitting small files issue. I was trying to put up a report via terminal script ( hdfs dfs -ls -R /tmp |grep ^- |awk '{if ($5 < 134217728) print $5, $8;}'| head -5 | column –t) but when I compare the result from the script output vs HDFS Report from Cloudera Manager I see a difference in the size of the same file. Could anyone provide any guidance / assistance on this, or am I doing something wrong. Thanks Amn
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