Step 11: Complete Post-Upgrade steps for upgrades to CDP Private Cloud Base
Steps to perform after upgrading a cluster.
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- Streams Messaging ManagerFollowing a successful upgrade, if you want to use SMM to monitor SRM replications, you must reconnect the two services. This is done by enabling the STREAMS_REPLICATION_MANAGER Service SMM property which is disabled by default.
- In Cloudera Manager, select the SMM service.
- Go to Configuration.
- Find and enable the STREAMS_REPLICATION_MANAGER Service property.
- Click Save Changes.
- Restart the service.
- Kafka ConnectUpgrading a Kafka Connect cluster can fail with the following ClassNotFoundException:
This is due to the Cloudera Manager agent not being able to properly create the symlinks and alternatives when performing an upgrade. The issue also occurs when a custom path is set for
Error: ClassNotFoundException exception occurred: com.cloudera.dim.kafka.config.provider.CmAgentConfigProvider exception occurred: com.cloudera.dim.kafka.config.provider.CmAgentConfigProvider
plugin.pathin Cloudera Manager, which does not contain the expected plugin JARs. Complete the following steps to resolve the issue:
- Manually install missing symlinks or alternatives relevant to kafka-connect by
- Ensure that the kafka-connect libraries are present in
/var/lib/kafkaor change the
plugin.pathto a value where these libraries are present.
If required, manually copy the JARs to the location configured in
- If the issue persists, set the
This is the location where kafka-connect libraries are set when installing parcels.
- Manually install missing symlinks or alternatives relevant to kafka-connect by checking