Github user vrozov commented on a diff in the pull request:
https://github.com/apache/drill/pull/1023#discussion_r149230560
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/work/WorkManager.java ---
@@ -158,38 +165,49 @@ public DrillbitContext getContext() {
return dContext;
}
- private ExtendedLatch exitLatch = null; // used to wait to exit when
things are still running
-
/**
* Waits until it is safe to exit. Blocks until all currently running
fragments have completed.
- *
- * <p>This is intended to be used by {@link
org.apache.drill.exec.server.Drillbit#close()}.</p>
+ * This is intended to be used by {@link
org.apache.drill.exec.server.Drillbit#close()}.
*/
public void waitToExit() {
- synchronized(this) {
- if (queries.isEmpty() && runningFragments.isEmpty()) {
- return;
+ final long startTime = System.currentTimeMillis();
+ final long endTime = startTime + EXIT_TIMEOUT;
+
+ exitLock.lock();
+
+ try {
+ long currentTime;
+ while ((currentTime = System.currentTimeMillis()) < endTime) {
--- End diff --
I'd recommend changing `while` condition to `queries` and
`runningFragments` not empty check as a primary condition for exiting. Timeout
(waitTime >0) is the secondary condition.
---
