Ambari Managed HDF Upgrade
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Known Issues

Summary of known issues for this release.

  • ReplaceText, when scheduled to run with multiple Concurrent Tasks, and using a Replacement Strategy of "Regular Expression" or "Literal Replace" can result in content being corrupted.

    The issue is far more likely to occur with multiple Concurrent Tasks, but it may be possible to trigger when using a single Concurrent Task.

    To get the fix for this issue, file a support case through the Cloudera portal.

  • SAM app with storm-druid sink throws exception.
  • Sometimes restarting Stream Analytics Manager fails. In most cases hitting a Retry button solves the issue. If retry does not solve and issue is Downloading mysql jdbc driver failed, the particular file marked in the logs should be removed on that node in /tmp. After that the installation can be continued.

    Sometimes Stream Analytics Manager installation times out. This is caused by the same root cause. Delete the mysql jar from the Stream Analytics Manager host /tmp folder, and retry after the timeout.

  • When you upgrade HDF from an older version (pre 3.5.0.0) on HDP, Nifi Registry might fail during the start with the following error message:
    Caused by: org.xml.sax.SAXParseException: cvc-complex-type.2.4.b: The content of element 'providers' is not complete. One of '{eventHookProvider, extensionBundlePersistenceProvider}' is expected.
    To resolve this issue, add the following configuration to Advanced nifi-registry-providers-env in Ambari:
    <extensionBundlePersistenceProvider>
            <class>org.apache.nifi.registry.provider.extension.FileSystemBundlePersistenceProvider</class>
            <property name="Extension Bundle Storage Directory">{{nifi_registry_internal_dir}}/extension_bundles</property>
    </extensionBundlePersistenceProvider>
  • Install or upgrade of HDF fails as the URL for HDP-UTILS, in the mpack, is not correct.

    Workaround: - must be replaced with / after the HDP-UTILS string. For example, replace https://archive.cloudera.com/p/HDP-UTILS-1.1.0.22/repos/centos7 with https://archive.cloudera.com/p/HDP-UTILS/1.1.0.22/repos/centos7.

ReplaceText with multiple concurrency tasks can result in data corruption
ReplaceText, when scheduled to run with multiple Concurrent Tasks, and using a Replacement Strategy of "Regular Expression" or "Literal Replace" can result in content being corrupted.
The issue is far more likely to occur with multiple Concurrent Tasks, but it may be possible to trigger when using a single Concurrent Task.

To get the fix for this issue, file a support case through the Cloudera portal.