Ashu Pachauri created HBASE-17031:
-------------------------------------
Summary: Scanners should check for null start and end rows
Key: HBASE-17031
URL: https://issues.apache.org/jira/browse/HBASE-17031
Project: HBase
Issue Type: Bug
Components: Scanners
Reporter: Ashu Pachauri
Priority: Minor
If a scan is passed with a null start row, it fails very deep in the call
stack. We should validate start and end rows for not null before launching the
scan.
Here is the associated jstack:
{code}
java.lang.RuntimeException: java.lang.NullPointerException
at
org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithoutRetries(RpcRetryingCaller.java:219)
at
org.apache.hadoop.hbase.client.ClientScanner.call(ClientScanner.java:326)
at
org.apache.hadoop.hbase.client.ClientScanner.nextScanner(ClientScanner.java:301)
at
org.apache.hadoop.hbase.client.ClientScanner.initializeScannerInConstruction(ClientScanner.java:166)
at
org.apache.hadoop.hbase.client.ClientScanner.<init>(ClientScanner.java:161)
at org.apache.hadoop.hbase.client.HTable.getScanner(HTable.java:798)
Caused by: java.lang.NullPointerException
at org.apache.hadoop.hbase.util.Bytes.compareTo(Bytes.java:1225)
at
org.apache.hadoop.hbase.util.Bytes$ByteArrayComparator.compare(Bytes.java:158)
at
org.apache.hadoop.hbase.util.Bytes$ByteArrayComparator.compare(Bytes.java:147)
at
org.apache.hadoop.hbase.types.CopyOnWriteArrayMap$ArrayHolder.find(CopyOnWriteArrayMap.java:892)
at
org.apache.hadoop.hbase.types.CopyOnWriteArrayMap.floorEntry(CopyOnWriteArrayMap.java:169)
at
org.apache.hadoop.hbase.client.MetaCache.getCachedLocation(MetaCache.java:79)
at
org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.getCachedLocation(ConnectionManager.java:1391)
at
org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegionInMeta(ConnectionManager.java:1231)
at
org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegion(ConnectionManager.java:1183)
at
org.apache.hadoop.hbase.client.RpcRetryingCallerWithReadReplicas.getRegionLocations(RpcRetryingCallerWithReadReplicas.java:305)
at
org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:156)
at
org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:60)
at
org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithoutRetries(RpcRetryingCaller.java:211)
... 30 more
{code}
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