SolrServerException: No collection param specified on request and no default collection has been set

深藏阁楼爱情的钟 2023-05-29 05:08 58阅读 0赞

> ### 问题概述 ###

关于这个问题，是在切换Solr集群服务时遇到的，根据当前业务的需求，在之前一直使用的类似于单实例的Solr服务器，但是随着业务量的不断增长，需要对其进行改进升级，将单例切换到集群的环境下，在切换时遇到了 “ No collection param specified on request and no default collection has been set ” ，这个不大不小的问题，可能有的人一看到英文就慌了，其实不然，根据中文意思“ 提示：需要设置集合参数或者需要指定默认的集合 ”，

如下图：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hlbGxvX1dvcmxkX1FXUA_size_16_color_FFFFFF_t_70][]

具体信息如下：

org.apache.solr.client.solrj.SolrServerException: No collection param specified on request and no default collection has been set.
    	at org.apache.solr.client.solrj.impl.CloudSolrClient.sendRequest(CloudSolrClient.java:917)
    	at org.apache.solr.client.solrj.impl.CloudSolrClient.requestWithRetryOnStaleState(CloudSolrClient.java:795)
    	at org.apache.solr.client.solrj.impl.CloudSolrClient.request(CloudSolrClient.java:738)
    	at org.apache.solr.client.solrj.request.QueryRequest.process(QueryRequest.java:91)
    	at org.apache.solr.client.solrj.SolrClient.query(SolrClient.java:302)
    	at com.huazai.b2c.aiyou.test.solrj.TSolrjCloud.tSolrCloudQuaryDoc(TSolrjCloud.java:92)
    	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    	at java.lang.reflect.Method.invoke(Method.java:498)
    	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
    	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
    	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
    	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
    	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
    	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:89)
    	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:41)
    	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:541)
    	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:763)
    	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:463)
    	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:209)

> ### 解决办法 ###

在官方文档中找到了答案，在使用SolrCloud时，指定其DefaultCollection参数即可【注释：集合名称为自己创建的集合名称哦，这个不能错了，错了一样的报错，找不到指定集合！】，如下截图内容：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hlbGxvX1dvcmxkX1FXUA_size_16_color_FFFFFF_t_70 1][]

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好了，关于 SolrServerException: No collection param specified on request and no default collection has been set的解决办法 就写到这儿了，如果还有什么疑问或遇到什么问题欢迎扫码提问，也可以给我留言哦，我会一一详细的解答的。   
歇后语：“ 共同学习，共同进步 ”，也希望大家多多关注CSND的IT社区。

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   <td>作&nbsp; &nbsp; &nbsp; &nbsp;者：</td> 
   <td>华 &nbsp; &nbsp;仔</td> 
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   <td>who.seek.me@java98k.vip</td> 
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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hlbGxvX1dvcmxkX1FXUA_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/2019110414324915.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hlbGxvX1dvcmxkX1FXUA==,size_16,color_FFFFFF,t_70