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Administrating Solr by Surendra Mohan

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Agent-less health checks

Before we get into the actual topic, we need to understand what is an agent-less check and later delve into the answer to the question, what should we look for over the network? We define agent-less check as the Solr health check, which can be performed remotely.

The first and the foremost thing we should do is to have a host-level check, which can be expected to perform a network-level ping. Then, we may go for checking TCP connectivity to the servlet container port and then make an HTTP GET request to the Solr front page checking for a known string (for instance, Welcome to Solr Monitoring and Optimization).

Now we can start with performing Solr specific checks by monitoring items which may include:

  • Ping status
  • Number of ...

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