I am newbie and in the learning path of Apache Solr .I am unable to start the Solr instance after hard deleting due to space issues . I get this error below if i try to start .
javax.servlet.UnavailableException: Error processing the request. CoreContainer is either not initialized or shutting down.I am trying in Windows 10.
Related
I just started to learn solr with official documentation and during the first exercise "Index Techproducts Example Data" I failed due to following error: " Failed to create collection 'techproducts' due to: Underlying core creation failed while creating collection: techproducts".
I tried to change java version from 13 to 8 but it didn't helped.
Here is link to the documentation: https://lucene.apache.org/solr/guide/8_5/solr-tutorial.html#exercise-1
Stacktrace from solr Admin console
Collection: techproducts operation: create failed:org.apache.solr.common.SolrException: Underlying core creation failed while creating collection: techproducts
at org.apache.solr.cloud.api.collections.CreateCollectionCmd.call(CreateCollectionCmd.java:304)
at org.apache.solr.cloud.api.collections.OverseerCollectionMessageHandler.processMessage(OverseerCollectionMessageHandler.java:263)
at org.apache.solr.cloud.OverseerTaskProcessor$Runner.run(OverseerTaskProcessor.java:504)
at org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:210)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
I had run into similar situation while following Solr
's official tutorial as following
➜ solr-8.7.0 ERROR: Failed to create collection 'techproducts' due to: Underlying core creation failed while creating collection: techproducts
And problem solved my turning off my vpn. I guess the vpn routing probably messed up with solr's localhost setting somehow.
I had the same Underlying core creation failed... error too. Using Java 11, Windows 10.
The log file was ${solr-home}\example\cloud\node1\logs\solr.log. Inside it had:
org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteSolrException: Error from server at http://192.168.1.16:7574/solr: Error CREATEing SolrCore 'techproducts_shard1_replica_n1': Unable to create core [techproducts_shard1_replica_n1] Caused by: no segments* file found in LockValidatingDirectoryWrapper(NRTCachingDirectory(MMapDirectory#{solr_home}\example\cloud\node2\solr\techproducts_shard1_replica_n1\data\index lockFactory=org.apache.lucene.store.NativeFSLockFactory#16326253; maxCacheMB=48.0 maxMergeSizeMB=4.0)): files: [write.lock] at org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(HttpSolrClient.java:681) ~[?:?]
at (etc. etc.)e
But this was the second time I launched solr. The first time it timed out trying to contact one of the nodes and the tutorial script aborted. But the nodes were still running. I killed them off using the windows task manager and not by using solr stop. So I suspect I left an instable mess behind and the second time the tutorial ran it crashed into this mess.
I erased everything and started over from unzipping and this third time there were no timeouts and the tutorial completed without error.
File: /opt/solr/server/etc/jetty.xml
(1) Name="requestHeaderSize" set Property name "solr.jetty.request.header.size" default="81920"
(2) Name="responseHeaderSize"> set Property name="solr.jetty.response.header.size" default="81920"
(3) Restart Solr
Hm, tried this, still getting the exact same error.
After Change:
[Set name="requestHeaderSize"][Property name="solr.jetty.request.header.size" default="81920" /][/Set]
[Set name="responseHeaderSize"][Property name="solr.jetty.response.header.size" default="81920" /][/Set]
I stopped everything and retried, then I had Windows Firewall prompt me for 'SAP Machine' authorization for java 11 message, I accepted it, and retried. Then it worked. Seems Windows Firewall related.
I have installed the solr service on a LINUX environment. Now trying to start the service using the below command
service solr start
After executing this command, am getting below error from the server
Waiting to see Solr listening on port 8080 [-] Still not seeing Solr listening on 8080 after 30 seconds!
tail: cannot open `/var/solr/logs/solr.log' for reading: No such file or directory
I created the solr.log file manually and placed it under the above mentioned path, But as soon, i issue the command "service solr start" . The solr.log file will be renamed and there won't be any new file created with the solr.log. hence the service fails to start. Could anyone let me know how to tackle this issue.
Thanks in advance.
I had a similar issue, and was able to find a hint in the /var/solr/logs/solr-8983-console.log
Originally I had been using Java 8, and Solr was working just fine for me.
When I switched to Java 11, Solr would have the issue you reported.
The log file contained the following:
Java HotSpot(TM) 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.
Unrecognized VM option 'UseParNewGC'
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
I switched back to Java 8 and Solr started just fine.
First, did you use the procedure provided to install the Solr service page 461
Second, did you set the proper overrides to the environment defaults in a solr.in.sh script (p. 462 of the ref manual). You also need to make sure that the LOG4J_PROPS in the solr.in.sh file points to your log4j.properties file. Also make sure that SOLR_LOGS_DIR is pointing to the correct place.
If all that is correct, then check that the values in your log4j.properties file are set correctly (p. 468 of the ref manual).
You can get the reference manual here: https://www.apache.org/dyn/closer.lua/lucene/solr/ref-guide/ if you don't have it already.
I had a tough time getting Solr to run as a service, but in the end I simply wasn't reading carefully enough.
I am using solr4 in tomcat. Now i am planning to migrate it to Solr 5.3 , i tried to start the server using solr start . But i got the below exception
java.io.IOException: Cannot read file: solr-5.3.0\solr-5.3.
0\server\modules\http.mod
at org.eclipse.jetty.start.Modules.registerModule(Modules.java:549)
at org.eclipse.jetty.start.Modules.registerAll(Modules.java:486)
at org.eclipse.jetty.start.Main.processCommandLine(Main.java:608)
at org.eclipse.jetty.start.Main.main(Main.java:111)
I cant see any stacktrace in the console. except the below error message
ERROR: Solr at http://localhost:8983/solr did not come online within 30 seconds!
i think there might be some basic configuration i am missing , please help .
Thanks in advance
Check your java version, it has to be 1.7 minimum for Solr 5.3
Check the logs at solr_folder/server/logs, the cause will be there.
Simply stopping the server and then restarting it helped:
D:\Apache Solr\solr-6.6.0\bin>solr.cmd stop -all
Stopping Solr process 8072 running on port 8983
I've installed Solr on my Ubuntu to this path
/opt/solr/solr-4.10.2
After installing I started Solr:
sudo bin/solr start from /opt/solr/solr-4.10.2 directory
As I can understand it started successfully
Waiting to see Solr listening on port 8983 [/]
Started Solr server on port 8983 (pid=8385). Happy searching!
But when I try to get to admin page
http://localhost:8983/solr
I got 404 error:
HTTP ERROR: 404
Problem accessing /solr. Reason:
Not Found
Powered by Jetty://
Do you have any suggestion what's going wrong and where to look in order to fix this problem?
Since this error can be caused by a lot of things, you need to access the log file and debug the execution.
First of all, open your Node log file, located in /opt/solr/solr-4.10.2/node1/log and look for something weird (Shift+F for Errors).
Generally, this error occurs when you have a mismatch between the Solr required Java JDK and your current Java JDK.
When I had this problem, I found in the log file the following error message java.lang.UnsupportedClassVersionError: org/apache/solr/servlet/SolrDispatchFilter : Unsupported major.minor version 51.0 and realized the problem was the java version.
To solve this, try to change the current JDK, using the command sudo update-alternatives --config javac.
If the error still occurs, try to uninstall all unused JDK's, because Solr is getting the wrong path.
The final solution to this issue is to open the file /opt/solr/solr-4.10.2/solar.in.sh and edit the SOLR_JAVA_HOME, writing the right JDK path (e.g /usr/lib/jvm/java-1.7.0)
Disclosure: the secret is look in the log file and figure out what is causing the issue.
Cheers.
try:
http://localhost:8983/solr/index.html
[solr's web.xml]
<servlet>
<servlet-name>LoadAdminUI</servlet-name>
<servlet-class>org.apache.solr.servlet.LoadAdminUiServlet</servlet-class>
We are getting the error below for our SOLR configuration. Any idea about this.
System.TypeInitializationException: The type initializer for org.apache.solr.SolrSharp.Configuration.SolrSearchers threw an exception. ---> System.Configuration.ConfigurationErrorsException: Solr configuration error
at org.apache.solr.SolrSharp.Configuration.SolrSearchers..cctor()
Thanks for your time and help.
I suppose you didn't start (or didn't install) your Solr server.
Download latest version of Apache Solr
Start the server by following the instructions in Solr Tutorial
The default port is 8983 so you should be able to reach your Solr server at localhost:8983/solr
In App.config file in SolrSharp, replace the port in the server's url
This should solve the problem.