Unable to generate keytab from within Cloudera Manager

When generating credentials through Cloudera Manager, sometimes Cloudera Manager will return you the following error: /usr/share/cmf/bin/gen_credentials_ad.sh failed with exit code 53 and output of << + export PATH=/usr/kerberos/bin:/usr/kerberos/sbin:/usr/lib/mit/sbin:/usr/sbin:/sbin:/usr/sbin:/bin:/usr/bin + PATH=/usr/kerberos/bin:/usr/kerberos/sbin:/usr/lib/mit/sbin:/usr/sbin:/sbin:/usr/sbin:/bin:/usr/bin + KEYTAB_OUT=/var/run/cloudera-scm-server/cmf2781839247630884630.keytab + PRINC=sqoop2/<host>@REALM.COM + USER=kaupocSuFoZIOIDa + PASSWD=REDACTED + DIST_NAME=CN=kaupocSuFoZIOIDa,OU=Cloudera,OU=ServersUnix,OU=IT,OU=Basel,OU=AdminUnits,DC=emea,DC=XXXX,DC=com + '[' -z /etc/krb5-cdh.conf ']' + echo 'Using custom config …

Hive METASTORE exited unexpectedly, and no apparent error in the error log

This article explains how to trouble shoot the issue when Hive METASTORE dies with no apparent error message in the log. Cloudera Manager (short for CM) has a mechanism to kill the processes that have reached its memory allocations. So when this scenario happens, it usually means that Hive METASTORE …

Timestamp stored in Parquet file format in Impala Showing GMT Value

This article explains why Impala and Hive return different timestamp values on the same table that was created and value inserted from Hive. It also outlines the steps to force Impala to apply local time zone conversion when reading timestamp field stored in Parquet file format. When Hive stores a timestamp …