sohami commented on a change in pull request #1379: DRILL-6591: Show Exception
for failed queries submitted in WebUI
URL: https://github.com/apache/drill/pull/1379#discussion_r202250119
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/server/rest/QueryWrapper.java
##########
@@ -83,12 +83,17 @@ public QueryResult run(final WorkManager workManager,
final WebUserConnection we
float usagePercent = getHeapUsage();
// Wait until the query execution is complete or there is error submitting
the query
- logger.debug("Wait until the query execution is complete or there is error
submitting the query");
+ if (logger.isDebugEnabled()) {
+ logger.debug("Wait until the query execution is complete or there is
error submitting the query");
+ }
do {
try {
- isComplete = webUserConnection.await(TimeUnit.SECONDS.toMillis(1));
/*periodically timeout to check heap*/
- } catch (Exception e) { }
-
+ isComplete =
webUserConnection.timedWait(TimeUnit.SECONDS.toMillis(1)); /*periodically
timeout 1sec to check heap */
Review comment:
Actually you don't need this `timedWait` method. You can still use same
`await(timeout)` as you were using earlier. But outside while loop you can do
below check to get the exception in error condition. Check
[here](https://github.com/apache/drill/blob/master/exec/java-exec/src/main/java/org/apache/drill/exec/work/prepare/PreparedStatementProvider.java#L158)
```
// check if query completed with exception
if (isComplete && webUserConnection.getError() != null) {
throw new UserRemoteException(webUserConnection.getError());
}
```
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