Key Default Description
chain.eagerly.enabled
false Whether operators are chained more eagerly when the parallelism is one
classloader.parent-first-patterns.additional
(none) A (semicolon-separated) list of patterns that specifies which classes should always be resolved through the parent ClassLoader first. A pattern is a simple prefix that is checked against the fully qualified class name. These patterns are appended to "classloader.parent-first-patterns.default".
classloader.parent-first-patterns.default
"java.;scala.;org.apache.flink.;com.esotericsoftware.kryo;org.apache.hadoop.;javax.annotation.;org.slf4j;org.apache.log4j;org.apache.logging;org.apache.commons.logging;ch.qos.logback" A (semicolon-separated) list of patterns that specifies which classes should always be resolved through the parent ClassLoader first. A pattern is a simple prefix that is checked against the fully qualified class name. This setting should generally not be modified. To add another pattern we recommend to use "classloader.parent-first-patterns.additional" instead.
classloader.resolve-order
"child-first" Defines the class resolution strategy when loading classes from user code, meaning whether to first check the user code jar ("child-first") or the application classpath ("parent-first"). The default settings indicate to load classes first from the user code jar, which means that user code jars can include and load different dependencies than Flink uses (transitively).
io.tmp.dirs
System.getProperty("java.io.tmpdir")
mode
"new" Switch to select the execution mode. Possible values are 'new' and 'legacy'.
parallelism.default
1
partitioner.default
"REBALANCE" The default stream partitioner, used when the upstream and downstream parallelisms are not equal and partitioner is not specified. Possible values are 'RESCALE' and 'REBALANCE'.
resource.cpu.cores.default
0.01 CPU cores for operators, use double so we can specify cpu like 0.1.
resource.heap.mb.default
16 Java heap size (in megabytes) for operators.
user-jars.upload.disabled
false