Cloudera Manager 7.6.7 Cumulative hotfix 2

Following are the list of known issues and their corresponding workarounds that are shipped for Cloudera Manager 7.6.7 CHF2 (version: 7.6.7-h2-38250798):

OPSAPS-68452: Azul Open JDK 8 and 11 are not supported with Cloudera Manager

Azul Open JDK 8 and 11 are not supported with Cloudera Manager. To use Azul Open JDK 8 or 11 for Cloudera Manager RPM/DEBs, you must manually create a symlink between the Zulu JDK installation path and the default JDK path.

After installing Azul Open JDK8 or 11, you must run the following commands on all the hosts in the cluster:

Azul Open JDK 8

RHEL or SLES

# sudo ln -s /usr/lib/jvm/java-8-zulu-openjdk-jdk /usr/lib/jvm/java-8-openjdk

Ubuntu or Debian

# sudo ln -s /usr/lib/jvm/zulu-8-amd64 /usr/lib/jvm/java-8-openjdk

Azul Open JDK 11

For DEBs only

# sudo ln -s /usr/lib/jvm/zulu-11-amd64 /usr/lib/jvm/java-11

CDPD-75871: Hive external table replication fails after you upgrade from 7.6.7 CHF2

After you upgrade, the Hive external table replication policies fail during the “Hive import” step if the following conditions are true:

The default setting columnStatsImportMultiThreaded = true in the Cloudera Manager > Clusters > Hive service > Configuration > hive_replication_env_safety_valve property is retained after the upgrade process.
You are using HA Hive Metastore, and are using Hive and Impala to query source tables.

Perform the following steps to resolve the issue:

Go to the target Cloudera Manager > Clusters > Hive service > Configuration tab.
Locate the hive_replication_env_safety_valve property.
Add COLUMN_STATS_IMPORT_MULTI_THREADED=false, and Save the changes.
Restart the Hive service.
Run the Hive external table replication policy.

Following are the list of fixed issues that were shipped for Cloudera Manager 7.6.7 CHF2 (version: 7.6.7-h2-38250798):

OPSAPS-65104: Importing table column statistics for Hive replication is thread-safe but causes performance regression.; To resolve this issue, perform the following steps:

Go to the Cloudera Manager > Clusters > Hive service > Configuration tab.

Locate the hive_replication_env_safety_valve property.

Add only one of the following key-value pair depending on your requirement:

COLUMN_STATS_IMPORT_MULTI_THREADED=true
This ensures that the column statistics import operation is multi-threaded for Hive replication.

SKIP_COLUMN_STATS_IMPORT=true
This ensures that the column statistics import is skipped entirely.

The repositories for Cloudera Manager 7.6.7-CHF2 are listed in the following table:

Table 1. Cloudera Manager 7.6.7-CHF2
Repository Type	Repository Location
RHEL 8 Compatible	Repository: `https://username:password@archive.cloudera.com/p/cm7/patch/7.6.7-h2-38250798/redhat8/yum` Repository File: `https://username:password@archive.cloudera.com/p/cm7/patch/7.6.7-h2-38250798/redhat8/yum/cloudera-manager.repo`
RHEL 7 Compatible	Repository: `https://username:password@archive.cloudera.com/p/cm7/patch/7.6.7-h2-38250798/redhat7/yum` Repository File: `https://username:password@archive.cloudera.com/p/cm7/patch/7.6.7-h2-38250798/redhat7/yum/cloudera-manager.repo`
SLES 12	Repository: `https://username:password@archive.cloudera.com/p/cm7/patch/7.6.7-h2-38250798/sles12/yum` Repository File: `https://username:password@archive.cloudera.com/p/cm7/patch/7.6.7-h2-38250798/sles12/yum/cloudera-manager.repo`
Ubuntu 20	Repository: `https://username:password@archive.cloudera.com/p/cm7/patch/7.6.7-h2-38250798/ubuntu2004/apt` Repository file: `https://username:password@archive.cloudera.com/p/cm7/patch/7.6.7-h2-38250798/ubuntu2004/apt/cloudera-manager.list`
Ubuntu 18	Repository: `https://username:password@archive.cloudera.com/p/cm7/patch/7.6.7-h2-38250798/ubuntu1804/apt` Repository file: `https://username:password@archive.cloudera.com/p/cm7/patch/7.6.7-h2-38250798/ubuntu1804/apt/cloudera-manager.list`