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From "gabriele renzi (JIRA)" <j...@apache.org>
Subject [jira] Created: (CASSANDRA-933) OutOfBoundException in StorageService.getAllRanges
Date Tue, 30 Mar 2010 19:08:27 GMT
OutOfBoundException in StorageService.getAllRanges 
---------------------------------------------------

                 Key: CASSANDRA-933
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-933
             Project: Cassandra
          Issue Type: Bug
    Affects Versions: 0.6
            Reporter: gabriele renzi
            Priority: Minor


this was seen on 0.6-beta3 but it appears to be in trunk too, given the same code for getAllRanges.
The problem appeared while accessing a bootstraping node via nodetool, giving the following
stacktrace

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: -1
        at java.util.ArrayList.get(ArrayList.java:324)
        at java.util.Collections$UnmodifiableList.get(Collections.java:1154)
        at org.apache.cassandra.service.StorageService.getAllRanges(StorageService.java:1133)
        at org.apache.cassandra.service.StorageService.getRangeToAddressMap(StorageService.java:440)
        at org.apache.cassandra.service.StorageService.getRangeToEndPointMap(StorageService.java:431)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:93)
        at com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:27)
        at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
        at com.sun.jmx.mbeanserver.PerInterface.invoke(PerInterface.java:120)
        at com.sun.jmx.mbeanserver.MBeanSupport.invoke(MBeanSupport.java:262)
        at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:836)
        at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:761)
        at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1426)
...


Basically, no test is performed for non-emptyness of the input token list. If such list should
never be empty, I guess this should be explicit in the interface/javadoc, otherwise I'm attaching
a patch & testcase (pretty silly code, but the test passes :) ) 

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