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Deprecate JavaScript user-defined functions 

patch by Ekaterina Dimitrova; reviewed by Berenguer Blasi and Marcus Eriksson for CASSANDRA-17280
This commit is contained in:
Ekaterina Dimitrova 2022-02-23 11:34:52 -05:00
parent 5bc9f7c736
commit 22a4ae16e4
3 changed files with 18 additions and 2 deletions
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5
NEWS.txt
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@ -64,6 +64,11 @@ Upgrading
otc_backlog_expiration_interval_ms are deprecated and will be removed at earliest with next major release.
otc_coalescing_strategy is disabled since 3.11.
Deprecation
---------
- JavaScript user-defined functions have been deprecated. They are planned for removal
in the next major release. (CASSANDRA-17280)
4.0.2
=====

12
doc/modules/cassandra/pages/cql/functions.adoc
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@ -242,11 +242,19 @@ For example, `bigintAsBlob(3)` returns `0x0000000000000003` and `blobAsBigint(0x
==== User-defined functions
User-defined functions (UDFs) execute user-provided code in Cassandra.
By default, Cassandra supports defining functions in _Java_ and _JavaScript_.
By default, Cassandra supports defining functions in _Java_ and _JavaScript_.
Support for other JSR 223 compliant scripting languages, such as Python, Ruby, and Scala, is possible by adding a JAR to the classpath.
UDFs are part of the Cassandra schema, and are automatically propagated to all nodes in the cluster.
UDFs can be _overloaded_, so that multiple UDFs with different argument types can have the same function name.
UDFs can be _overloaded_, so that multiple UDFs with different argument types can have the same function name.
[NOTE]
.Note
====
_JavaScript_ user-defined functions have been deprecated. They are planned for removal
in the next major release.
====
For example:

3
src/java/org/apache/cassandra/config/DatabaseDescriptor.java
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@ -761,6 +761,9 @@ public class DatabaseDescriptor
if (conf.allow_extra_insecure_udfs)
logger.warn("Allowing java.lang.System.* access in UDFs is dangerous and not recommended. Set allow_extra_insecure_udfs: false to disable.");
if(conf.enable_scripted_user_defined_functions)
logger.warn("JavaScript user-defined functions have been deprecated. You can still use them but the plan is to remove them in the next major version. For more information - CASSANDRA-17280");
if (conf.commitlog_segment_size_in_mb <= 0)
throw new ConfigurationException("commitlog_segment_size_in_mb must be positive, but was "
+ conf.commitlog_segment_size_in_mb, false);