将 Tomcat6 升级到 Tomcat8 后出错：无法加载 solrconfig.xml 的配置

Question

我是运行 Ubuntu 12.04 Tomcat6 上的 Solr；我们升级到 16.04 和 Tomcat8，Solr 停止读取一些索引。我相信唯一受影响的索引是配置目录被软链接的索引。后来谷歌搜索了一下，我发现 allowLinking 属性被移动了。这是我的旧配置：

<!-- /etc/tomcat6/Catalina/localhost/solr.xml -->
<Context path="/solr" docBase="/usr/share/solr"
    debug="0" privileged="true" allowLinking="true" crossContext="true">
  <Environment name="solr/home" type="java.lang.String" value="/usr/share/solr" override="true" />
</Context>

我改写为：

<!-- /etc/tomcat8/Catalina/localhost/solr.xml -->
<Context path="/solr" docBase="/usr/share/solr"                                   
    privileged="true" crossContext="true">                                         
  <Resources allowLinking="true" />      
  <Environment name="solr/home" type="java.lang.String" value="/usr/share/solr" override="true" />
</Context>

甚至在全球范围内尝试过：

<!-- /etc/tomcat8/context.xml -->
<Context>
  <WatchedResource>WEB-INF/web.xml</WatchedResource>
  <WatchedResource>${catalina.base}/conf/web.xml</WatchedResource>
  <Resources allowLinking="true"/>
</Context>

但我无法让 Solr 加载这些内核。 /var/log/tomcat8/catalina.out中错误如下：

3 27, 2017 2:22:33 午後 org.apache.solr.core.CoreContainer recordAndThrow
重大: Unable to create core: blacklight-core
org.apache.solr.common.SolrException: Could not load config for solrconfig.xml
        at org.apache.solr.core.CoreContainer.createFromLocal(CoreContainer.java:973)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1033)
        at org.apache.solr.core.CoreContainer.call(CoreContainer.java:629)
        at org.apache.solr.core.CoreContainer.call(CoreContainer.java:624)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: Can't find resource 'solrconfig.xml' in classpath or '/disks/disk00/solr/library/blacklight-core/conf/', cwd=/var/lib/tomcat8
        at org.apache.solr.core.SolrResourceLoader.openResource(SolrResourceLoader.java:316)
        at org.apache.solr.core.SolrResourceLoader.openConfig(SolrResourceLoader.java:281)
        at org.apache.solr.core.Config.<init>(Config.java:103)
        at org.apache.solr.core.Config.<init>(Config.java:73)
        at org.apache.solr.core.SolrConfig.<init>(SolrConfig.java:117)
        at org.apache.solr.core.CoreContainer.createFromLocal(CoreContainer.java:971)
        ... 9 more

(午后表示"pm","重大"是"serious")

Answer 1

愚蠢的问题，愚蠢的答案。

Tomcat 6 运行在组 tomcat6 下。 Tomcat 8 作为 tomcat8.

运行

我的文件是 -rw-rw---- amadan:tomcat6。

解决方案：chgrp -R tomcat8 /disks/disk00/solr/.

将 Tomcat6 升级到 Tomcat8 后出错：无法加载 solrconfig.xml 的配置

Error after upgrading Tomcat6 to Tomcat8: Could not load config for solrconfig.xml

solr

tomcat8

blacklight