Fix divide by zero in LoadBalancingKMSClientProvider

apache · May 25, 2021 · f554b83 · f554b83
1 parent 028ec47
commit f554b83
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/...common/src/main/java/org/apache/hadoop/crypto/key/kms/LoadBalancingKMSClientProvider.java b/...common/src/main/java/org/apache/hadoop/crypto/key/kms/LoadBalancingKMSClientProvider.java
@@ -233,6 +233,10 @@ private <T> T doOp(ProviderCallable<T> op, int currPos,
   }
 
   private int nextIdx() {
+    if (providers.length == 0) {
+      throw new IOException("No providers configured !");
+    }
+
     while (true) {
       int current = currentIdx.get();
       int next = (current + 1) % providers.length;