How to find the current version of Solr if the ip:8983/solr/admin is unreachable (the solr itself is running and responds)? Is it possible to read the current version from one of the files in the file system, or to build a custom php query to get this value? (if the query is needed please be kind to provide an example or reference, Thanks)
In my Solr 1.4.1 setup the war file was only solr.war, but I have found the version in CHANGES.txt
Lib name from solr-webapp/WEB-INF may be helpful for You: solr-core-4.4.0.jar
How are you deploying your solr war file. If you are using the default example folder then u can see one of the files to check the version. Or in ur application is the client need the version of solr? But what is the use of that?
In version 7.7.1 there is a file LUCENE_CHANGES.txt
Lucene Change Log
For more information on past and future Lucene versions, please see:
http://s.apache.org/luceneversions
======================= Lucene 7.7.1 =======================
(No Changes)
======================= Lucene 7.7.0 =======================
Changes in Runtime Behavior
The simplest solution is to go to the SOLR install location and execute:
./solr version
Example:
[root#node bin]# pwd
/usr/lib/ambari-infra-solr/bin
[root#node bin]# ./solr version
7.7.2
Uses command:
cd /opt/solr/bin/
./solr version
Related
I'm a front-end developer and I need to do a Ckan Theme. To do so, I need a working source install of CKAN on my system. I'm using Mint 18.1 and installing Ckan 2.6.2.
Following the steps of the installation of ckan's docs I've got a warning and an error at step 6 as shown on the image.
As you can see the last line says SOLR schema version not supported: 2.7. Supported versions are [2.3] and I can't proceed with the installation. Searching on the Internet I found people having the same problem, but using Docker (have no idea what is this) and their solutions didn't work for me.
Because I have a really short time to build this theme I gave up CKAN 2.6.2 and installd 2.5.2 and everything worked fine.
The SOLR schema that comes with CKAN 2.6.2 is version 2.3, so somehow you have got 2.7, which is provided with later versions of CKAN. Maybe you installed CKAN master and the schema is lingering from then.
Here are some steps so that you can find out where the problem is:
You can check the version of the schema in the CKAN source repo on your disk:
grep 'name="ckan" version=' /usr/lib/ckan/default/src/ckan/ckan/config/solr/schema.xml
You would have then installed this file into Solr (in Step 5, using the 'ln' command). You can check the version in Solr:
grep 'name="ckan" version=' /etc/solr/conf/schema.xml
(When this file is changed, you need to restart SOLR (i.e. jetty) for it to take effect - see the docs again).
You can see what schema SOLR is actually using:
curl -s 'http://localhost:8983/solr/admin/file/?contentType=text/xml;charset=utf-8&file=schema.xml'|grep 'name="ckan" version='
Please do feed back on these.
It sounds like your Docker container for SOLR is a newer version than that is not compatible with CKAN 2.6.2.
What is the best way to update a Solr 5 version in production (in other words installed as a service) on Linux? I have an already installed Solr 5.0 (via the Service Installation Script) and now need to upgrade it to Solr 5.2.1. Realizing some of the config files will need to be changed to take advantage of recent changes, after stopping the current instance, is the best way to simply run the new Solr 5.2.1 Service Installation Script or just untar the 5.2.1 solr-5.2.1.tgz to /opt or something else? Fortunately, I have a very simple set up (not SolrCloud).
After actually looking into the /opt folder it is fairly obvious I just need to untar solr into that folder and change the solr symbolic link to point to the new version. This should work most of the time keeping in mind that occasionally, as Jay pointed out, there could be changes to the solr files that could possibly require more than this.
Currently we are using Apache Solr 4.10.3 OR Heliosearch Distribution for Solr [HDS] as a search engine to index our data.
Now after that, I got the news about Apache Solr 5.0.0 release in last month. I'd successfully installed Apache Solr 5.0.0 version and now its running properly on 8983 port (means only running solr but unable to create core). In that UI, I'm unable to find the example core as well as schema or config files under it. So, I started creating new core as we create in old versions but unable to create one. Following is the error, I'm getting it:
Error CREATEing SolrCore 'testcore1': Unable to create core [testcore1] Caused by: Could not find configName for collection testcore1 found:null
Note: I also seen Cloud tab on (ie. http://localhost:8983/solr/) left side of Solr UI and also don't know how it works? Meaning I don't know the location of the schema.xml, solrconfig.xml files due to lack of example folder (Collection1) and how to update those files?
Is there any useful document or solution available to solve this error?
In Solr 5, creation of cores is supported by the bin/solr script provided in the distribution. Try
bin/solr create -help
for a quick introduction.
From the above help doc, you may find:
bin/solr create [-c name] [-d confdir] [-n configName] [-shards #] [-replicationFactor #] [-p port]
In Solr 5.4.0 , create new core using command from Solr-5.x.x folder (Solr Installation folder) like following,
$ bin/solr create -c <name>
See this documentation of Apache Solr 5.4 https://cwiki.apache.org/confluence/display/solr/Running+Solr
{SOLR_INSTALLATION}/server/solr/configsets\basic_configs\conf
you can find the example schema.xml and solrconfig.xml.
if you want to create the new core
{SOLR_INSTALLATION}/server/solr/{new core name} folder and create conf folder with required schema and solrconfig.xml and blank core.properties file.
you can find the examples for schema and config in
{SOLR_INSTALLATION}/example/example-DIH/solr
Create using the web interface
Go to bin directory and issue
./solr start -e cloud -noprompt
Which will start solr.
Go to http://localhost:8983
(this is assuming you are running on localhost)
Click on core admin and they "Add Core"
Use provided solr script with solr user privileges to create Solr cores, e.g.
cd /opt/solr
sudo -u solr ./bin/solr create -c testcore1
Run bin/solr --help for syntax guidance.
For any other issues, please check your Solr logs (e.g. /var/solr/logs/solr.log).
Related: SOLR-7826: Permission issues when creating cores with bin/solr as root user.
You can find your solrconfig.xml and schema.xml inside the collection directory.
Go to /usr/lib/ambari-infra-solr/server/solr and u will see a folder with same name as of collection and with schema and config files.
Inside the conf folder there will be a managed-schema file and other files that you have been searching for.
As for this error
Error CREATEing SolrCore 'testcore1': Unable to create core [testcore1] Caused by: Could not find configName for collection testcore1 found:null
This error must be coming when you are creating solr collection from UI.
For that go to location where solr.cmd is located and type the below code
./solr create -c -d -s -r
copy conf from solr/example/conf to solr/server/solr/.
I have Linux Ubuntu 12.04 installed and I'm trying to install nutch 1.5.1 and solr 3.6.1 and integrate theme together to crawl seed urls.
I'm using This tutorial to get this work.
I followed the steps before 3.2 and skipped to step 4 and I can access to
localhost:8983/solr/admin/
without error.
but when going to step 6 and copying schema.xml from conf folder of nutch to example/solr/conf folder of solr
solr/admin page occurs a java error,below:
How can I handle that?
one more thing to ask....
I have another tutorial for this that looks good but in first step it mentions that add some code to nutch-site.xml file in /conf/ and /runtime/local/conf/ folder
but in nutch folder there is no runtime folder.In step 4 this folder mentioned too.
any suggestion?
thanks in advance
This is just bit of red herring. The line that specifies version number something like:
<schema name="nutch" version="1.5.1">
is causing it because the value of version is being parsed as float. remove the extra dot. Change it to 1.5 or 1.51 to make it valid float and restart your solr instance. The exception should disappear.
Check,please, whether are Nutch 1.5.1 and Solr 3.6.1 compatible (are they having same versions of lucene-core and solr-solrj jars). I got some problems with incompatible versions, but not with 1.5/3.6 .
I have been searching for two days and have not been able to find an answer.
I have solr installed from the repos on an Ubuntu server running on tomcat 6. I have added the solr-cell jar and tika libraries.
I can run a curl command that works for some pdf files and indexes them fine, but it does not not work for others. At first i thought that some files were corrupted but that does not appear to be be the case. There does not appear to me to be any major difference between the ones thaqt work and those that don't.
The error i get is a 500 error - see example here
The curl request i make is:
$ curl 'http://mysolrserver.com:port/solr/update/extract?map.content=text&map.stream_name=id&extractOnly=true&commit=true' -F "file=#/absolute/path/to/file.pdf"
This does work for some PDFs fine, just not others.
I believe I have solr 1.4.0 installed.
Any help would be appreciated - thank you
--EDIT--
I am using Ubuntu 10.04.1 if that helps at all.
A NullPointerException is probably a bug. Report it to PDFBox and/or Tika.
OK the nightly snapshot of solr uses PDFBox 1.3.1 as opposed to the current stable which uses 0.7.* which is a fair amount of revision changes.
I can index all the pdfs using this snapshot version of solr. This seems to me something that will be
fixed in the next stable version.