I am running Hadoop 2.6.0 on cdh5.4.2 in VM. After unexpected power cut I started my VM and found hue is not working, its not started properly and given the error
I restarted HUE using below command:
sudo service hue stop
sudo service hue start
But no use. I was not able to run hive/pig/sqoop. Please help me what to do to fix this error.
Thanks in advance.
Related
I need help with Hue quickstart, i'm a beginner and i'm facing an issue with opening hue ui.
Configuration files located in /etc/hue/conf.empty
Potential misconfiguration detected. Fix and restart Hue.
hadoop.hdfs_clusters.default.webhdfs_url Current value: http://localhost:50070/webhdfs/v1
Failed to create temporary file "/tmp/hue_config_validation.9845984781315522608"
Hive Editor The application won't work without a running HiveServer2.
Here's a snapshot of error
Note
i tried some commands for restarting hue service but no use
sudo service hue stop
sudo service hbase-thrift stop
sudo service hbase-thrift start
sudo service hive-server2 stop
sudo service hive-server2 start
sudo service hue start
I am unable to restart Hue in AWS EMR Hadoop cluster.
I have modified hue.ini file and wanted to restart hue for the changes to apply.When I ran "service hue restart", It is giving "command not found" error. I can understand that this must be because hue is not added to the environment path. However, when I run bin/hue, it doesn't take restart as an input. Is there a way to restart hue?
I am using Hue 3.7.1-amzn-7, emr-4.8.4 and Amazon 2.7.3 Hadoop distribution.
Thanks in Advance.
The restart process depends on the EMR AMI version you are using.
On EMR 4.x.x & 5.x.x AMI's ,
Service management is handled by upstart, and not the traditional SysVInit scripts. So, the error like "Command not found" is expected. Services can be queried using the upstart commands found in upstart cookbook
List of services on EMR:
grep -ir "env DAEMON=" /etc/init/ | cut -d"\"" -f2
hadoop-yarn-resourcemanager
oozie
hadoop-hdfs-namenode
hive-hcatalog-server
hadoop-mapreduce-historyserver
hue
hadoop-kms
hadoop-yarn-proxyserver
hadoop-httpfs
hive-server2
hadoop-yarn-timelineserver
Example commands to stop/start hue:
status hue
sudo stop hue
sudo start hue
sudo reload hue
On EMR 3.x.x AMI's ,the SysVInit commands that you are trying to use service hue restart might work.
Hi Experts,
I'm newbie to Hadoop , linux environment and Cloudera. I installed cloudera vm 5.7 on my machine and imported mysql data to hdfs using SQOOP. I'm trying to execute to some queries against this data using impala. So, I tried launching HUE. When I launched I could see there is some misconfiguration error.
Error:
Potential misconfiguration detected. Fix and restart Hue.
Steps I have taken to troubleshoot this issue
1)I restarted HUE using below command:
sudo service hue stop
sudo service hue start
2) I tried looking at following directory file ./etc/hue - I could see there are two config folder. One is config and other on config.empty. I couldn't figure out the problem.
But Still I'm facing the same issue.
check out! your internet access from docker/VM, and after lots of messing around trying to figure out why the vmWare Bridge adapter wasn't working, I found my problem was docker. So you have to increase docker memory from UI or command ,mine was 2 I increased to 8 but 4 is ok
stop hue :
sudo service hue stop
restart HBASE :
sudo service hbase-thrift stop;
sudo service hbase-thrift start;
Restart Hive :
sudo service hive-server2 stop
sudo service hive-server2 start
start hue
sudo service hue start
Open, http://quickstart.cloudera:8888/about/ : it should work like a charm💫
I have installed Hadoop and Hive on CentOS 5.8. Hadoop is working fine but I am not able to start hiveserver2. Running the command $HIVE_HOME/bin/hiveserver2 gives no output. I have also checked and no process is listening to port 10000 which is the default port. What can be the possible cause?
The problem was my namenode went into safemode. Turning off safemode fixed the problem.
I need your help.I have a question with hadoop clustors starting.the error :
the error :Command 'ZkStartPreservingDatastore' failed for service 'zookeeper1'
please help me ,thank you.
Hope this helps. I've encountered the same issue on our production CDH4 cluster. I've tried to restart the service manually, and what I've noticed in the logs was the following error message:
[NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory#193] - Too many connections from /10.0.2.133 - max is 50
So, I've edited /etc/zookeeper/conf/zoo.cfg and changed the maxClientCnxns to 500. After that I've manged to restart the zookeeper, and cluster came back.