我继承了一个运行Zookeeper和Solr的平台。最初的主要问题是zoo.cfg和Zookeeper有旧设置，因此DNS命名解析无效。
我已经修好了。我还修复了/ var / lib / zookeeper中myid值的问题，感谢这个帖子（有人在那里留下了一个字符串值......）
Zookeeper - three nodes and nothing but errors
现在，日志的输出是不同的：
2017-08-28 14:24:19,368 [myid:3] - WARN [QuorumPeer[myid=3]/0:0:0:0:0:0:0:0:2181:QuorumCnxManager@400] - Cannot open channel to 2 at election address zookeeper-test-2/10.240.102.89:3888
java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:381)
at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectAll(QuorumCnxManager.java:426)
at org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:843)
at org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:822)
2017-08-28 14:24:19,368 [myid:3] - INFO [QuorumPeer[myid=3]/0:0:0:0:0:0:0:0:2181:QuorumPeer$QuorumServer@149] - Resolved hostname: zookeeper-test-2 to address: zookeeper-test-2/10.240.102.89
2017-08-28 14:24:19,368 [myid:3] - INFO [QuorumPeer[myid=3]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@852] - Notification time out: 400
如果我从VPC中的一个EC2运行这个脚本，我可以看到它几乎正常工作：
+
+ SOLR
+ Online Nodes: 2
+ solrcloud-test-2 [ Connection to 8983 succeeded ]
+ solrcloud-test-1 [ Connection to 8983 succeeded ]
-------------
+ ELB not responding properly. HTTP response: 503
+
+ ZOOKEEPER
+ Online Instances: 3
+ zookeeper-test-3 [ Connection to 2181 succeeded ]
+ zookeeper-test-2 [ Connection to 2181 succeeded ]
+ zookeeper-test-1 [ Connection to 2181 succeeded ]
+ Minimal Configured: 3
+ Cluster Status: UP
正如你所看到的，即使Solr Ec2似乎在线，ELB也没有检测到Solr的路径。
我检查了Tomcat如何调出Solr的参数，我再次检测到与主机名相关的错误配置，因此我修复并重新启动了Tomcat，但是我的ELB运行状况检查仍未检测到该URL。
此检查设置为
HTTP:8983/solr/
我做了一个netstat，我可以看到端口和监听
[root@solrcloud-test-2 ~]# netstat -lnp |grep 8983
tcp 0 0 :::8983 :::* LISTEN 3338/java
另外我注意到的另一件事是，即使我重新启动tomcat，服务的日志也会在8月25日冻结！
ERROR - 2017-08-25 17:10:25.369; org.apache.solr.common.SolrException; null:org.apache.solr.common.SolrException: java.net.UnknownHostException: zookeeper-1: unknown error
at org.apache.solr.common.cloud.SolrZkClient.<init>(SolrZkClient.java:139)
at org.apache.solr.cloud.ZkController.<init>(ZkController.java:207)
at org.apache.solr.core.ZkContainer.initZooKeeper(ZkContainer.java:152)
at org.apache.solr.core.ZkContainer.initZooKeeper(ZkContainer.java:67)
at org.apache.solr.core.CoreContainer.load(CoreContainer.java:216)
at org.apache.solr.servlet.SolrDispatchFilter.createCoreContainer(SolrDispatchFilter.java:189)
at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:136)
at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:279)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:260)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:105)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4939)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5633)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:899)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:875)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1092)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1984)
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.net.UnknownHostException: zookeeper-1: unknown error
at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)
at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)
at java.net.InetAddress.getAllByName0(InetAddress.java:1276)
at java.net.InetAddress.getAllByName(InetAddress.java:1192)
at java.net.InetAddress.getAllByName(InetAddress.java:1126)
at org.apache.zookeeper.client.StaticHostProvider.<init>(StaticHostProvider.java:61)
at org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:445)
at org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:380)
at org.apache.solr.common.cloud.SolrZooKeeper.<init>(SolrZooKeeper.java:41)
at org.apache.solr.common.cloud.DefaultConnectionStrategy.connect(DefaultConnectionStrategy.java:37)
at org.apache.solr.common.cloud.SolrZkClient.<init>(SolrZkClient.java:114)
... 22 more
INFO - 2017-08-25 17:10:25.370; org.apache.solr.servlet.SolrDispatchFilter; SolrDispatchFilter.init() done
ERROR - 2017-08-25 17:10:25.525; org.apache.solr.core.CoreContainer; CoreContainer was not shutdown prior to finalize(), indicates a bug -- POSSIBLE RESOURCE LEAK!!! instance=650576553
但另一方面catalina.out
INFO: Deploying web application archive /var/lib/tomcat7/webapps/solr.war
Aug 29, 2017 8:39:26 AM org.apache.catalina.startup.TldConfig execute
INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
Aug 29, 2017 8:39:26 AM org.apache.catalina.core.StandardContext startInternal
SEVERE: One or more Filters failed to start. Full details will be found in the appropriate container log file
Aug 29, 2017 8:39:26 AM org.apache.catalina.core.StandardContext startInternal
SEVERE: Context [/solr] startup failed due to previous errors
Aug 29, 2017 8:39:26 AM org.apache.catalina.startup.HostConfig deployWAR
INFO: Deployment of web application archive /var/lib/tomcat7/webapps/solr.war has finished in 3,447 ms
Aug 29, 2017 8:39:26 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8983"]
Aug 29, 2017 8:39:26 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8443"]
Aug 29, 2017 8:39:26 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-bio-8009"]
Aug 29, 2017 8:39:26 AM org.apache.catalina.startup.Catalina start
INFO: Server startup in 3579 ms
所以也许我的问题是我不知道如何重新启动Solr组件？真的是我第一次使用这个软件，如果我的问题完全是noob，那么道歉：）
更新
我在日志中找到了新信息。现在我觉得我更接近根本问题了。但是我不明白这个问题，有些文件丢失了吗？
Aug 29, 2017 9:12:11 AM org.apache.catalina.core.StandardContext filterStart
SEVERE: Exception starting filter SolrRequestFilter
java.lang.NoClassDefFoundError: Failed to initialize Apache Solr: 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
由于
答案 0 :(得分：0)
非常感谢