HPE Ezmeral Data Fabric Event Data Streams C Applications

C applications can be developed for HPE Ezmeral Data Fabric Event Data Streams (as of MapR 5.2.1). The HPE Ezmeral Data Fabric Event Data Streams C Client is a distribution of librdkafka that works with HPE Ezmeral Data Fabric Event Data Streams. The HPE Ezmeral Data Fabric Event Data Streams C Client is available in Ecosystem Pack (MEP) 3.0 or higher.

The following Apache Kafka librdkafka versions are supported:
Table 1. Supported Apache Kafka librdkafka versions
Core release MEP Release Kafka librdkafka version
As of 6.0.1 As of 5.0 0.11.3
As of 5.2.1 through 6.0.0 As of 3.0 0.9.0

The HPE Ezmeral Data Fabric Event Data Streams C Client supports a majority of the librdkafka C APIs plus additional configuration properties that are available only with HPE Ezmeral Data Fabric Event Data Streams. When developing applications for HPE Ezmeral Data Fabric Event Data Streams or migrating Kafka applications to HPE Ezmeral Data Fabric Event Data Streams, see the list of librdkafka APIs Supported by HPE Ezmeral Data Fabric Event Data Streams C Client which also describes API behavior. Reference rdkafka.h for API signatures.

When developing and running HPE Ezmeral Data Fabric Event Data Streams C applications, note the following:
  • You can create producers and high-level consumers. Low-level consumers are not supported.
  • Consuming or producing topics in a Kafka cluster is not supported.
  • As of HPE Ezmeral Data Fabric 6.0, the HPE Ezmeral Data Fabric Event Data Streams offset values start at 0.
  • HPE Ezmeral Data Fabric Security is supported. Kafka application-level security is not supported. See Security.
  • User impersonation is not supported.
CAUTION: As of HPE Ezmeral Data Fabric 6.1, the mapr-core package has a dependency on mapr-librdkafka. If the mapr-librdkafka package is installed, do not remove it manually. Doing so could result in the removal of HPE Ezmeral Data Fabric core packages, rendering the node unusable.