如何修复 Solr 异常:找不到必要的 SLF4j 日志 jar? [英] How to fix Solr Exception: Could not find necessary SLF4j logging jars?

问题描述

我在 Ubuntu 12.04 下安装 Solr 4.3 时遇到大问题.首先我安装了tomcat.我可以通过 localhost:8080 上的浏览​​器访问 tomcat.进入Tomcat Web 应用程序管理器"，我尝试通过 2solr.war 文件安装 Solr 4.3.该文件已上传并部署.但我无法启动它.失败 - 上下文路径中的应用程序/solr 无法启动".

I have big problems installing Solr 4.3 under Ubuntu 12.04. Firstly i installed tomcat. I can access tomcat via browser on localhost:8080. Into "Tomcat Web Application Manager" i try to install Solr 4.3 via 2solr.war" file. The file is been uploaded an deployed. But i cant get it started. "FAIL - Application at context path /solr could not be started".

日志文件(localhost.log)如下所示:

The log file (localhost.log) look like:

07.05.2013 11:05:36 org.apache.catalina.core.ApplicationContext log
INFO: HTMLManager: start: Starting web application at '/solr'
07.05.2013 11:05:36 org.apache.catalina.core.StandardContext filterStart
SCHWERWIEGEND: Exception starting filter SolrRequestFilter
org.apache.solr.common.SolrException: Could not find necessary SLF4j logging jars. If using Jetty, the SLF4j logging jars need to go in the jetty lib/ext directory. For other containers, the corresponding directory should be used. For more information, see: http://wiki.apache.org/solr/SolrLogging
    at org.apache.solr.servlet.SolrDispatchFilter.<init>(SolrDispatchFilter.java:105)
    ... 33 more
07.05.2013 11:05:36 org.apache.catalina.core.ApplicationContext log
INFO: HTMLManager: list: Listing contexts for virtual host 'localhost'
07.05.2013 11:05:36 org.apache.catalina.core.StandardContext filterStart
SCHWERWIEGEND: Exception starting filter SolrRequestFilter
org.apache.solr.common.SolrException: Could not find necessary SLF4j logging jars. If using Jetty, the SLF4j logging jars need to go in the jetty lib/ext directory. For other containers, the corresponding directory should be used. For more information, see: http://wiki.apache.org/solr/SolrLogging
    at org.apache.solr.servlet.SolrDispatchFilter.<init>(SolrDispatchFilter.java:105)
    ... 21 more

卡特琳娜.....日志

catalina.....log

07.05.2013 11:05:36 org.apache.catalina.core.StandardContext start
SCHWERWIEGEND: Error filterStart
07.05.2013 11:05:36 org.apache.catalina.core.StandardContext start
SCHWERWIEGEND: Context [/solr] startup failed due to previous errors
07.05.2013 11:05:36 org.apache.catalina.startup.HostConfig checkResources
INFO: Reloading context [/solr]
07.05.2013 11:05:36 org.apache.catalina.core.StandardContext stop
INFO: Container org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/solr] has not been started
07.05.2013 11:05:36 org.apache.catalina.core.StandardContext start
SCHWERWIEGEND: Error filterStart
07.05.2013 11:05:36 org.apache.catalina.core.StandardContext start
SCHWERWIEGEND: Context [/solr] startup failed due to previous errors

有人可以帮助我并告诉我该怎么做吗?

Can somebody help me and tell me what to do?

推荐答案

正如日志所说 - 找不到必要的 SLF4j 日志 jar.

您缺少 slf4j 罐子.

You are missing the slf4j jars.

将 slf4j jar 放在 $CATALINA_BASE/lib 文件夹中.有关详细信息，请查看此处

Place the slf4j jars in the $CATALINA_BASE/lib folder. For more information have a look here

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