Known issues

Learn about the known issues in the Cloudera Operational Database, the impact or changes to the functionality, and the workaround.

COD-3987 (COD 1.46): LB based client configs and tarball URLs in the describe-client-connectivity command output fails intermittently

Problem: Due to a known Cloudbreak issue, CB-26030, downloading an HBase client configuration intermittently fails when using multiple Gateway nodes

Workaround: Retry the download operation until it succeeds.

COD-3611 (COD 1.38): [Azure] Import TSV job during AZ outage fails to write data to the HBase table

Problem: COD is unable to write data on an HBase table and also fails to import a TSV file during a Multi-AZ outage on an Azure environment.

Workaround: None

ODX-1603 (COD 1.22) : COD throws a "Node Failure" issue

Problem: COD reports "Node Failure" state whenever OMID service goes down and retains the state until the OMID service is restarted from Cloudera Manager (CM).

Workaround:

If you are using OMID, restart the OMID service through CM and wait for a few minutes until COD starts displaying Available again.
If you are not using OMID service and your COD status is not affected by the OMID service status, you can suppress the OMID alerts directly in the CM.

Technical Service Bulletins

TSB 2022-568: HBase normalizer must be disabled for Salted Phoenix tables

When Apache Phoenix (“Phoenix”) creates a salted table, it pre-splits the table according to the number of salt regions. These regions must always be kept separate, otherwise Phoenix does not work correctly.

The HBase normalizer is not aware of this requirement, and in some cases the pre-split regions are merged automatically. This causes failure in Phoenix.

The same requirement applies when merging regions of salted tables manually: regions containing different salt keys (the first byte of the rowkey) must never be merged.

Note that either automatic or manual splitting of the regions for a salted table does not cause a problem. The problem only occurs when adjacent regions containing different salt keys are merged.

Upstream JIRA

PHOENIX-4906

Knowledge article

For the latest update on this issue, see the corresponding Knowledge article: TSB 2022-568: Hbase normalizer must be disabled for Salted Phoenix tables