HBASE-27990 BucketCache causes ArithmeticException due to improper blockSize value checking (#5389)
Signed-off-by: Duo Zhang <zhangduo@apache.org>
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.java
index 912a3ab..cd65050 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.java
@@ -283,6 +283,7 @@
public BucketCache(String ioEngineName, long capacity, int blockSize, int[] bucketSizes,
int writerThreadNum, int writerQLen, String persistencePath, int ioErrorsTolerationDuration,
Configuration conf) throws IOException {
+ Preconditions.checkArgument(blockSize > 0, "BucketCache capacity is set to " + blockSize + ", can not be less than 0");
boolean useStrongRef = conf.getBoolean(STRONG_REF_KEY, STRONG_REF_DEFAULT);
if (useStrongRef) {
this.offsetLock = new IdReadWriteLockStrongRef<>();
