如何修复LockObtainFailedException:锁获得超时？

Question

当我从一个Gradle任务运行它们时，我的集成测试失败了。

org.springframework.data.solr.UncategorizedSolrException: **SolrCore 'collection1' is not available due to init failure: Error opening new searcher; nested exception is org.apache.solr.common.SolrException: SolrCore 'collection1' is not available due to init failure: Error opening new searcher**
at org.springframework.data.solr.core.SolrTemplate.execute(SolrTemplate.java:122)
at org.springframework.data.solr.core.SolrTemplate.saveDocuments(SolrTemplate.java:206)
at org.springframework.data.solr.core.SolrTemplate.saveDocuments(SolrTemplate.java:201)

org.apache.lucene.store.LockObtainFailedException:锁获得超时: NativeFSLock@/opt/solr/example/solr/collection1/data/index/write.lock

当我在Intellij中直接运行集成测试时，测试将成功运行。下面是我对嵌入式服务器的bean定义。我加入了destroyMethod，但没有效果。

 @Bean(destroyMethod = "shutdown")
public SolrServer solrServer(org.apache.commons.configuration.Configuration configuration)  {

    EmbeddedSolrServerFactory factory;
    try {
        factory = new EmbeddedSolrServerFactory(configuration.getString("solr.home"));
    } catch (ParserConfigurationException | IOException | SAXException e) {
        String errorMsg = "Encountered an exception while initializing the SolrServer bean.";
        log.error(errorMsg, e);
        throw new OrdersClientRuntimeException(errorMsg, e);
    }
    return factory.getSolrServer();
}

这是原木。一切似乎都在正确地关闭。

2014-09-02 17:32:15.757 thread="Thread-6" level="DEBUG" logger="o.s.b.f.s.DisposableBeanAdapter" - **Invoking destroy method 'shutdown' on bean with name 'solrServer'**
2014-09-02 17:32:15.759 thread="Thread-8" level="DEBUG" logger="o.s.b.f.s.DefaultListableBeanFactory" - Retrieved dependent beans for bean 'solrDocumentRepository': [net.nike.orders.client.search.repository.DocumentRepositorySpec]
2014-09-02 17:32:15.759 thread="Thread-6" level="INFO " logger="org.apache.solr.core.CoreContainer" - **Shutting down CoreContainer instance=179265569**
2014-09-02 17:32:15.760 thread="Thread-8" level="DEBUG" logger="o.s.b.f.s.DisposableBeanAdapter" - **Invoking destroy method 'shutdown' on bean with name 'solrServer'**
2014-09-02 17:32:15.760 thread="Thread-8" level="INFO " logger="org.apache.solr.core.CoreContainer" - **Shutting down CoreContainer instance=1604485329**
2014-09-02 17:32:15.762 thread="Thread-6" level="INFO " logger="org.apache.solr.core.SolrCore" - [collection1]  **CLOSING SolrCore** org.apache.solr.core.SolrCore@28da98e2
2014-09-02 17:32:15.769 thread="Thread-8" level="DEBUG" logger="o.a.h.i.c.PoolingClientConnectionManager" - **Connection manager is shutting down**
2014-09-02 17:32:15.769 thread="Thread-6" level="INFO " logger="**org.apache.solr.update.UpdateHandler" - closing** DirectUpdateHandler2{commits=23,autocommit maxTime=15000ms,autocommits=0,soft autocommits=2,optimizes=0,rollbacks=0,expungeDeletes=0,docsPending=0,adds=0,deletesById=0,deletesByQuery=0,errors=0,cumulative_adds=33,cumulative_deletesById=32,cumulative_deletesByQuery=0,cumulative_errors=0,transaction_logs_total_size=5302,transaction_logs_total_number=10}
2014-09-02 17:32:15.771 thread="Thread-8" level="DEBUG" logger="o.a.h.i.c.PoolingClientConnectionManager" - Connection manager shut down
2014-09-02 17:32:15.773 thread="Thread-8" level="DEBUG" logger="o.a.h.i.c.PoolingClientConnectionManager" - Connection manager is shutting down
2014-09-02 17:32:15.774 thread="Thread-8" level="DEBUG" logger="o.a.h.i.c.PoolingClientConnectionManager" - Connection manager shut down

这是我的环境信息：

• Linux 17
• Solr 4.9.0
• Solr测试框架4.9.0
• Oracle Java 1.7
• Spring数据Solr 1.2.2.
• IntelliJ 13.1.4
• 1.12级
• 测试是在斯波克开发的

任何帮助都将不胜感激。谢谢!

Answer 1

我在测试中遇到了同样的情况，但是unlockOnStartup标志对我不起作用。我最后更改了锁类型(并将unlockOnStartup注释掉了)：

<lockType>${solr.lock.type:single}</lockType>
<!--<unlockOnStartup>true</unlockOnStartup>-->

默认锁类型(本机)上的注意事项让我认为我没有在测试运行之间关闭cleany，但是我还没有找到它:(

         native = NativeFSLockFactory - uses OS native file locking.
                  Do not use when multiple solr webapps in the same
                  JVM are attempting to share a single index.

Answer 2

只是有个类似的问题把它修好了。

我在单元测试中使用EmbeddedSolrServer，并在运行时动态创建新的核心。

在创建CoreContainer时，一定要在测试之后调用When ()。

还请确保所有SolrCore实例在测试后都会关闭。

调用coreContainer.create(CoreDescriptor, name, ...)将打开一个必须手动关闭的SolrCore。

通过传递EmbeddedSolrServer创建coreName时，不会打开SolrCore！打开和关闭由EmbeddedSolrServer对每个请求/操作进行处理。

Answer 3

好吧，所以我可以通过改变

<unlockOnStartup>true</unlockOnStartup>

在solrconfig.xml文件中。