Solr is an open source enterprise search platform from the Apache Lucene project, written in Java.

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Severe errors in solr configuration: Error loading class

Installed Solr on my Windows XP PC. Tomcat seems to be working fine. Cannot get Solr to work. I noticed the TrieDateField is declared in a file called schema.xml in the SolrHome directory. Any ...
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how to add solr to run on startup?

I asked this question before, but I think I got answers that were cron job type answers. I want the solr service to startup if I reboot my computer, and I also want it to run by itself instead of me ...
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Can I run a site search like Lucene on a single 2 gig server that's also a web & mysql server

My site's pages have exceeded the limit of pages for Google Custom Search so many of the results are not found in our site search. I've been reading about Lucene, Nutch, Solr, etc and I'm wondering ...
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What is a Servlet Container and how to install one?

I am about to order a VPS (virtual private server) from a provider, and I guess I have to install some Servlet Container right? I am about to use SOLR and my website is PHP MYSQL JAVASCRIPT based. ...
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384 views

Can Linux RAID 1 account for high latency?

Scenario: we're running a large (3TB total in cluster) Solr installation in EC2. I'm only concerned about disk performance on the read side of things. We suspect that we are limited by disk I/O and ...
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How to monitor SOLR

We have SOLR running on a windows platform in our development environment, and on a Linq platform for production. We would like to monitor the SOLR index. We currently have Microsoft MOM (I think ...
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541 views

Compacting solr indexes

I've got a sizeable Solr server which is chewing a pile of disk. Whilst it is indexing a large amount of data, I'm wondering if there's any operation that will reduce the size of the index, by say ...
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How to Install Apache Solr / Java on CentOS?

I've seen only one or two tutorials for installing Solr, and particularly Java, on a CentOS machine, and they seem to be overly complex; heck, I can't quite figure out which version of Java (it seems ...
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Local Devel Server Slow on 192.168.0.* vs localhost

I want to expose my development site to more computers in the house. What I'm finding is that accessing it via an internal ip like 192.168.0.198 is extremely slow compared to hitting localhost . I'd ...
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725 views

What are the negatives of setting a high wait_timeout setting in MySQL?

I'm looking at the possibility of increasing the wait_timeout on a MySQL server in an effort to avoid a streaming JDBC SELECT in a Solr Data Import Handler from timing out after the default 28800 ...
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solr administration

Does anyone have any notes for an sysadmin supporting solr? I'm looking for anything that might be useful for monitoring & metrics as well as troubleshooting. Some useful links I have found are: ...