[jira] [Updated] (HBASE-28487) Division by zero encountered when using BloomFilter with a misconfiguration

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-28487?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated HBASE-28487:
-----------------------------------
    Labels: pull-request-available  (was: )

> Division by zero encountered when using BloomFilter with a misconfiguration
> ---------------------------------------------------------------------------
>
>                 Key: HBASE-28487
>                 URL: https://issues.apache.org/jira/browse/HBASE-28487
>             Project: HBase
>          Issue Type: Bug
>            Reporter: ConfX
>            Priority: Major
>              Labels: pull-request-available
>
> h2. What happened:
> Got Division by 0 when trying to run org.apache.hadoop.hbase.procedure2.store.region.TestHFileProcedurePrettyPrinter#test with io.storefile.bloom.max.fold set too large.
> h2. Buggy code:
> In BloomFilterUtil.java:
> {code:java}
>   public static int optimalFunctionCount(int maxKeys, long bitSize) {
>     long i = bitSize / maxKeys; // here maxKeys might be zero
>     ...
>   }
> {code}
> h2. StackTrace:
> {code:java}
> org.apache.hadoop.hbase.DroppedSnapshotException: region: master:store,,1.1595e783b53d99cd5eef43b6debb2682.
> …
> Caused by: java.lang.ArithmeticException: / by zero
> 	at org.apache.hadoop.hbase.util.BloomFilterUtil.optimalFunctionCount(BloomFilterUtil.java:143)
> 	at org.apache.hadoop.hbase.util.BloomFilterUtil.createBySize(BloomFilterUtil.java:167){code}
> h2. How to reproduce:
> (1) Set io.storefile.bloom.max.fold to 73830463
> (2) Run test: org.apache.hadoop.hbase.procedure2.store.region.TestHFileProcedurePrettyPrinter#test



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