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Legacy and Alternative Sensitive Properties Algorithms

Migration

The nifi.sensitive.props.algorithm property in the nifi.properties configuration has supported a large number of possible values, including improved algorithms introduced in NiFi 1.14.0.

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The SSLContextService interface is a standard Controller Service that supports TLS communication for network services. The createSSLContext methods accepted a Client Authentication argument that did not apply to SSLContext instances. The replacement createContext method provides the same runtime behavior without requiring any arguments. Updating custom code to compile against Apache NiFi 1.13.0 or greater and switching to the createContext method provides compatibility with Apache NiFi 2.0.0.

CRON Scheduling Changes

Migration

Component run scheduling using cron expression changed from using Quartz to Spring Framework CronExpression for parsing the scheduling period in NIFI-12290.

The new parsing approach does not impact most cron expressions, but does introduce the following changes:

• Removed support for the optional Year field as the seventh field in an expression
• Integer definitions for day of the week span from 0 to 7 instead of 1 to 7

Components can no longer be scheduled to run for a particular year, so any referenced to a seventh field in an expression must be removed. Using named day of the week references such as SUN or MON are preferred over integer references.

Processors

Migrating deprecated Processors and properties requires flow design changes. The steps required range from setting different property values to replacing one Processor with one or more Processors providing similar capabilities.

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Migration

Base64EncodeContent supports a single Mode property that can be set to Encode or Decode.

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Migration

GetHTTP supports a number of configurable properties to retrieve data using the HTTP GET method. The URL property controls the primary behavior of the Processor.

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Migration

GetJMSQueue supports retrieving messages using the Java Message Service Queue interface to access Apache ActiveMQ.

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Migration

GetJMSTopic supports retrieving messages using the Java Message Service Topic interface to access Apache ActiveMQ.

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Migration

GetTwitter uses Version 1 of the Twitter REST API and relies on the retired Twitter Hosebird Client library.

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Migration

HashAttribute supports generating an MD5 digest of one more FlowFile attribute name and value pairs. The MD5 algorithm is not secure for cryptographic operations, and alternatives such as the SHA-2 or SHA-3 algorithms should be used.

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Migration

HashContent supports generating a digest of FlowFile content using a configurable algorithm and writing the hash to a specified FlowFile attribute.

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Migration

InvokeHTTP includes several deprecated properties for configuring access through a proxy server.

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Migration

PostHTTP supports sending FlowFile content to a configurable HTTP URL using the HTTP POST method.

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Migration

PutJMS supports sending messages using the Java Message Service interface to access Apache ActiveMQ.

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