Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/3365#discussion_r103477920
--- Diff:
flink-runtime-web/src/main/java/org/apache/flink/runtime/webmonitor/handlers/JobExceptionsHandler.java
---
@@ -41,19 +43,23 @@ public JobExceptionsHandler(ExecutionGraphHolder
executionGraphHolder) {
@Override
public String handleRequest(AccessExecutionGraph graph, Map<String,
String> params) throws Exception {
+ return createJobExceptionsJson(graph);
+ }
+
+ public static String createJobExceptionsJson(AccessExecutionGraph
graph) throws IOException {
StringWriter writer = new StringWriter();
JsonGenerator gen =
JsonFactory.jacksonFactory.createGenerator(writer);
gen.writeStartObject();
// most important is the root failure cause
String rootException = graph.getFailureCauseAsString();
- if (rootException != null) {
- gen.writeStringField("root-exception", rootException);
+ if
(!rootException.equals(ExceptionUtils.STRINGIFIED_NULL_EXCEPTION)) {
--- End diff --
that's reasonable.
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