mongodb - 从PIG写入MongoDB-错误2116-未找到mongodb模式

Question

我在Windows Server 2008上使用Hadoop-Hortonworks发行版
我们正在使用PIG并试图将数据写入MongoDB；我无法读取或写入MongoDB；不知道是什么问题，我们得到一个错误2116，指出mongodb模式为空

读取命令-

register 'D:\hdp\pig-0.12.1.2.1.1.0-1621\lib\mongo-hadoop-core-1.2.0.jar'
register 'D:\mongo-hadoop-2.2-1.2.0\mongo-hadoop-2.2-1.2.0\mongo-hadoop-1.2.0.jar'
register 'D:\mongo-hadoop-2.2-1.2.0\mongo-hadoop-2.2-1.2.0\mongo-hadoop-pig-1.2.0.jar'
register 'D:\hdp\hadoop-2.4.0.2.1.1.0-1621\lib\mongo-2.6.1.jar'
set mapred.map.tasks.speculative.execution false;
set mapred.reduce.tasks.speculative.execution false;
SET mapreduce.fileoutputcommitter.marksuccessfuljobs false;
SalesLoading = load 'mongodb://localhost/benvenuedb.SalesData' using com.mongodb.hadoop.pig.MongoLoader();
store SalesLoading into 'mongodb://localhost:27017/benvenuedb.SalesData1' using com.mongodb.hadoop.pig.MongoStorage();

错误讯息

Pig Stack Trace
---------------
ERROR 2116: 
<line 5, column 0> Output Location Validation Failed for: 'mongodb://127.0.0.1:27017/benvenuedb.SalesData More info to follow:
The value of property mongo.pig.output.schema must not be null

org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1002: Unable to store alias salesLoading
    at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1637)
    at org.apache.pig.PigServer.registerQuery(PigServer.java:577)
    at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:1093)
    at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:501)
    at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:198)
    at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:173)
    at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:69)
    at org.apache.pig.Main.run(Main.java:541)
    at org.apache.pig.Main.main(Main.java:156)
Caused by: org.apache.pig.impl.plan.VisitorException: ERROR 2116: 
<line 5, column 0> Output Location Validation Failed for: 'mongodb://127.0.0.1:27017/benvenuedb.SalesData More info to follow:
The value of property mongo.pig.output.schema must not be null
    at org.apache.pig.newplan.logical.rules.InputOutputFileValidator$InputOutputFileVisitor.visit(InputOutputFileValidator.java:75)
    at org.apache.pig.newplan.logical.relational.LOStore.accept(LOStore.java:66)
    at org.apache.pig.newplan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:64)
    at org.apache.pig.newplan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:66)
    at org.apache.pig.newplan.DepthFirstWalker.walk(DepthFirstWalker.java:53)
    at org.apache.pig.newplan.PlanVisitor.visit(PlanVisitor.java:52)
    at org.apache.pig.newplan.logical.rules.InputOutputFileValidator.validate(InputOutputFileValidator.java:45)
    at org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.compile(HExecutionEngine.java:303)
    at org.apache.pig.PigServer.compilePp(PigServer.java:1382)
    at org.apache.pig.PigServer.executeCompiledLogicalPlan(PigServer.java:1307)
    at org.apache.pig.PigServer.execute(PigServer.java:1299)
    at org.apache.pig.PigServer.access$400(PigServer.java:124)
    at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1632)
    ... 8 more
Caused by: java.lang.IllegalArgumentException: The value of property mongo.pig.output.schema must not be null
    at com.google.common.base.Preconditions.checkArgument(Preconditions.java:88)
    at org.apache.hadoop.conf.Configuration.set(Configuration.java:971)
    at org.apache.hadoop.conf.Configuration.set(Configuration.java:953)
    at com.mongodb.hadoop.pig.MongoStorage.setStoreLocation(MongoStorage.java:249)
    at org.apache.pig.newplan.logical.rules.InputOutputFileValidator$InputOutputFileVisitor.visit(InputOutputFileValidator.java:68)
    ... 20 more

我已经发布了netstat -an来查看打开的端口
本地地址是10.69.148.89;我在该IP中看不到端口27017打开；但是127.0.0.1有27017打开。我们忽略了一些简单的事情。

需要一些帮助;我们已经花了2天多的时间

Answer 1

您是否尝试设置它说缺少的属性？

The value of property mongo.pig.output.schema must not be null