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HADOOP-15023. ValueQueue should also validate (int) (lowWatermark * numValues) > 0 on construction. 

(cherry picked from commit b1941b200d)
This commit is contained in:
Xiao Chen 2017-11-15 16:43:25 -08:00
parent 9780d58a63
commit a78dbd1571
1 changed files with 4 additions and 2 deletions
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6
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/crypto/key/kms/ValueQueue.java
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@ -224,6 +224,9 @@ public class ValueQueue <E> {
Preconditions.checkArgument(numValues > 0, "\"numValues\" must be > 0");
Preconditions.checkArgument(((lowWatermark > 0)&&(lowWatermark <= 1)),
"\"lowWatermark\" must be > 0 and <= 1");
final int watermarkValue = (int) (numValues * lowWatermark);
Preconditions.checkArgument(watermarkValue > 0,
"(int) (\"numValues\" * \"lowWatermark\") must be > 0");
Preconditions.checkArgument(expiry > 0, "\"expiry\" must be > 0");
Preconditions.checkArgument(numFillerThreads > 0,
"\"numFillerThreads\" must be > 0");
@ -243,8 +246,7 @@ public class ValueQueue <E> {
throws Exception {
LinkedBlockingQueue<E> keyQueue =
new LinkedBlockingQueue<E>();
refiller.fillQueueForKey(keyName, keyQueue,
(int)(lowWatermark * numValues));
refiller.fillQueueForKey(keyName, keyQueue, watermarkValue);
return keyQueue;
}
});