Robert Stupp created CASSANDRA-9954:
---------------------------------------
Summary: Improve Java-UDF timeout detection
Key: CASSANDRA-9954
URL: https://issues.apache.org/jira/browse/CASSANDRA-9954
Project: Cassandra
Issue Type: Improvement
Reporter: Robert Stupp
Assignee: Robert Stupp
Fix For: 3.x
CASSANDRA-9402 introduced a sandbox using a thread-pool to enforce security
constraints and to detect "amok UDFs" - i.e. UDFs that essentially never return
(e.g. {{while (true)}}.
Currently the safest way to react on such an "amok UDF" is to _fail-fast_ - to
stop the C* daemon since stopping a thread (in Java) is just no solution.
CASSANDRA-9890 introduced further protection by inspecting the byte-code. The
same mechanism can also be used to manipulate the Java-UDF byte-code.
By manipulating the byte-code I mean to add regular "is-amok-UDF" checks in the
compiled code.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
