写了一条hive sql ，其中条件中存在 dt>=20150101 and dt<=20150228 这样的条件，原来执行没问题，今天就抛出

FAILED: Hive Internal Error: java.lang.NullPointerException(null)
java.lang.NullPointerException
 at org.apache.hadoop.hive.ql.optimizer.pcr.PcrExprProcFactory.opAnd(PcrExprProcFactory.java:128)
 at org.apache.hadoop.hive.ql.optimizer.pcr.PcrExprProcFactory$GenericFuncExprProcessor.process(PcrExprProcFactory.java:267)
 at org.apache.hadoop.hive.ql.lib.DefaultRuleDispatcher.dispatch(DefaultRuleDispatcher.java:89)
 at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.dispatch(DefaultGraphWalker.java:88)
 at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.walk(DefaultGraphWalker.java:128)
 at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.startWalking(DefaultGraphWalker.java:102)
 at org.apache.hadoop.hive.ql.optimizer.pcr.PcrExprProcFactory.walkExprTree(PcrExprProcFactory.java:450)
 at org.apache.hadoop.hive.ql.optimizer.pcr.PcrOpProcFactory$FilterPCR.process(PcrOpProcFactory.java:149)
 at org.apache.hadoop.hive.ql.lib.DefaultRuleDispatcher.dispatch(DefaultRuleDispatcher.java:89)
 at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.dispatch(DefaultGraphWalker.java:88)
 at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.walk(DefaultGraphWalker.java:128)
 at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.startWalking(DefaultGraphWalker.java:102)
 at org.apache.hadoop.hive.ql.optimizer.pcr.PartitionConditionRemover.transform(PartitionConditionRemover.java:78)
 at org.apache.hadoop.hive.ql.optimizer.Optimizer.optimize(Optimizer.java:85)
 at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:6630)
 at org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:238)
 at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:340)
 at org.apache.hadoop.hive.ql.Driver.run(Driver.java:736)
 at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:209)
 at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:286)
 at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:485)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 at java.lang.reflect.Method.invoke(Method.java:601)
 at org.apache.hadoop.util.RunJar.main(RunJar.java:197)

这样的错误，仔细检查sql也没问题，以前执行也没问题。

show partitions 之后 发现有一个分区

 dt=test

drop之后 alter table table_name  drop partition(dt='test');

执行正常。呵呵 思考吧

本文转自茄子_2008博客园博客，原文链接：http://www.cnblogs.com/xd502djj/p/4335737.html，如需转载请自行联系原作者。