Cause:
Graphs are not displayed in the cloudera dashboard and throwing error after starting the cluster
Solution:
Click on the cloudera management service and click restart.
It take sometime for the realtime graphs to reflect on the dashboard!
Day: January 16, 2021
-bash: locate: command not found (Solved)
Solution:
[root@ip-xxx ~]# which locate
/usr/bin/which: no locate in (/usr/local/sbin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin)
Use yum to install mlocate package
[root@ip-xxx ~]# yum install mlocate -y
Loaded plugins: amazon-id, rhui-lb, search-disabled-repos
cloudera-manager | 951 B 00:00:00
mysql-connectors-community | 2.6 kB 00:00:00
mysql-tools-community | 2.6 kB 00:00:00
mysql56-community | 2.6 kB 00:00:00
rhui-REGION-client-config-server-7 | 2.1 kB 00:00:00
rhui-REGION-rhel-server-releases | 2.0 kB 00:00:00
rhui-REGION-rhel-server-rh-common | 2.1 kB 00:00:00
Resolving Dependencies
--> Running transaction check
---> Package mlocate.x86_64 0:0.26-8.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
=============================================================================================================================================================================================
Package Arch Version Repository Size
=============================================================================================================================================================================================
Installing:
mlocate x86_64 0.26-8.el7 rhui-REGION-rhel-server-releases 113 k
Transaction Summary
=============================================================================================================================================================================================
Install 1 Package
Total download size: 113 k
Installed size: 379 k
Downloading packages:
mlocate-0.26-8.el7.x86_64.rpm | 113 kB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : mlocate-0.26-8.el7.x86_64 1/1
Verifying : mlocate-0.26-8.el7.x86_64 1/1
Installed:
mlocate.x86_64 0:0.26-8.el7
Complete!
Update the locate repository
[root@ip-xxx ~]# updatedb
/bin/../lib/sqoop/../accumulo does not exist! Accumulo imports will fail.
Cause:
While executing export data from HDFS to RDBMS using sqoop ,because of non existing accumulo home,this error is triggered in hadoop
[root@ip-xxx ~]# [root@ip-172-31-60-27 ~]# sqoop export --connect jdbc:mysql://localhost:3306/tes t \
> --table t \
> --username root --password 123 \
> --export-dir root/data \
> --fields-terminated-by ',' --lines-terminated-by '\n'
Warning: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/bin/../lib/sqoop/../accumulo does not exist! Accumulo imports will fail.
Please set $ACCUMULO_HOME to the root of your Accumulo installation.
21/01/15 18:48:01 INFO sqoop.Sqoop: Running Sqoop version: 1.4.6-cdh5.15.1
Missing argument for option: connect
Solution:
Make a accumulo home directory in var/lib
Add the environment variable for accumulo home in the /etc/profile file
[root@ip-xxx ~]# mkdir -p /var/lib/accumulo
[root@ip-xxx~]# vi /etc/profile
[root@ip-xxx ~]# cat /etc/profile|grep 'ACCU'
ACCUMULO_HOME=/var/lib/accumulo
export ACCUMULO_HOME
[root@ip-xxx ~]# source /etc/profile
