tillrohrmann commented on a change in pull request #15134:
URL: https://github.com/apache/flink/pull/15134#discussion_r593182205
##########
File path:
flink-yarn-tests/src/test/java/org/apache/flink/yarn/YarnTestBase.java
##########
@@ -327,6 +328,36 @@ public void close() throws Exception {
}
}
+ private static List<ApplicationReport> getApplicationReportWithRetryOnNPE(
+ final YarnClient yarnClient) throws IOException, YarnException {
+ return getApplicationReportWithRetryOnNPE(yarnClient, null);
+ }
+
+ private static List<ApplicationReport> getApplicationReportWithRetryOnNPE(
+ final YarnClient yarnClient, EnumSet<YarnApplicationState> states)
Review comment:
```suggestion
final YarnClient yarnClient, @Nullable
EnumSet<YarnApplicationState> states)
```
##########
File path:
flink-yarn-tests/src/test/java/org/apache/flink/yarn/YarnTestBase.java
##########
@@ -327,6 +328,36 @@ public void close() throws Exception {
}
}
+ private static List<ApplicationReport> getApplicationReportWithRetryOnNPE(
+ final YarnClient yarnClient) throws IOException, YarnException {
+ return getApplicationReportWithRetryOnNPE(yarnClient, null);
+ }
+
+ private static List<ApplicationReport> getApplicationReportWithRetryOnNPE(
+ final YarnClient yarnClient, EnumSet<YarnApplicationState> states)
+ throws IOException, YarnException {
+ final int maxRetryCount = 10;
+ for (int i = 0; i < maxRetryCount; i++) {
+ try {
+ return yarnClient.getApplications(states);
+ } catch (NullPointerException e) {
+ String npeStr = ExceptionUtils.stringifyException(e);
+ if
(!npeStr.contains("RMAppAttemptMetrics.getAggregateAppResourceUsage")) {
+ // unrelated NullPointerExceptions should be forwarded to
the calling method
+ throw e;
+ }
+
+ LOG.warn(
+ "NullPointerException was caught most likely being
related to YARN-7007. The related discussion is happening in FLINK-15534. The
exception is going to be ignored.");
+ }
+ }
+
+ throw new IllegalStateException(
+ "YarnClient.getApplications command failed "
+ + maxRetryCount
+ + " times to gather the application report. Check
FLINK-15534 for further details.");
Review comment:
Let's add `e` as the cause for the sake of completeness.
##########
File path:
flink-yarn-tests/src/test/java/org/apache/flink/yarn/YarnTestBase.java
##########
@@ -327,6 +328,36 @@ public void close() throws Exception {
}
}
+ private static List<ApplicationReport> getApplicationReportWithRetryOnNPE(
+ final YarnClient yarnClient) throws IOException, YarnException {
+ return getApplicationReportWithRetryOnNPE(yarnClient, null);
+ }
+
+ private static List<ApplicationReport> getApplicationReportWithRetryOnNPE(
+ final YarnClient yarnClient, EnumSet<YarnApplicationState> states)
+ throws IOException, YarnException {
+ final int maxRetryCount = 10;
+ for (int i = 0; i < maxRetryCount; i++) {
+ try {
+ return yarnClient.getApplications(states);
+ } catch (NullPointerException e) {
+ String npeStr = ExceptionUtils.stringifyException(e);
+ if
(!npeStr.contains("RMAppAttemptMetrics.getAggregateAppResourceUsage")) {
+ // unrelated NullPointerExceptions should be forwarded to
the calling method
+ throw e;
+ }
+
+ LOG.warn(
+ "NullPointerException was caught most likely being
related to YARN-7007. The related discussion is happening in FLINK-15534. The
exception is going to be ignored.");
Review comment:
Maybe we could log `e` on debug if debug is enabled.
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