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6 min readTo stop Solr servers properly, it is recommended to gracefully shutdown the servers by sending a shutdown command using the solr script or API. This allows the server to finish handling any ongoing requests before stopping completely. Alternatively, you can use the kill command to forcefully stop the server, but this may lead to data loss or corruption if not done carefully.
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5 min readTo replace elements in an array in Elixir, you can use the Kernel.put_elem/3 function. This function takes three arguments: the array, the index of the element to replace, and the new value you want to replace it with.For example, suppose you have an array [1, 2, 3, 4] and you want to replace the element at index 2 with the value 6. You can do this by calling put_elem(array, 2, 6), which will return [1, 2, 6, 4].
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5 min readMonitoring Solr indexing speed involves keeping track of the time taken for documents to be added to a Solr collection. This can be achieved by using various tools and techniques such as using the Solr admin dashboard to monitor indexing performance metrics, setting up logging and monitoring systems to track indexing operations, and using performance monitoring tools like APM (Application Performance Monitoring) or Elasticsearch's Indexing Benchmarks tool to measure indexing speed.
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3 min readIn Elixir, you can extract the filename from a URL by first parsing the URL string using the URI module to get the path component of the URL. Then, you can use the Path module to extract just the filename from the path. Here's an example code snippet that demonstrates how to do this: url = "https://example.com/path/to/file.txt" parsed_url = URI.parse(url) path = Path.basename(parsed_url.path) IO.puts(path) # Output: "file.
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3 min readIn Solr, you can declare various document types by defining a unique field in your schema.xml file for each type of document you wish to index. For example, if you want to index books and articles separately, you can create fields like "book_title", "book_author", "book_publisher" for books and "article_title", "article_author", "article_journal" for articles.
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5 min readIn Elixir, modules are used to define and encapsulate functionality within a specific namespace. When specifying module implementation at compile time, you can use compiler directives such as @behaviour, @doc, and @moduledoc to provide additional information about the module to the compiler and enhance the readability of the code.
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4 min readTo convert a text file with delimiters as fields into a Solr document, you can follow these steps:Prepare your text file with delimiters separating the fields.Use a file parsing tool or script to read the text file and extract the fields based on the delimiters.Map the extracted fields to the corresponding fields in your Solr schema.Create a Solr document object and populate it with the extracted field values.Index the Solr document into your Solr collection.
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5 min readTo create a map from two arrays in Elixir, you can use the Enum.zip/2 function to combine the two arrays into a list of tuples, and then use the Enum.into function to convert this list of tuples into a map.Here's an example: arr1 = [:a, :b, :c] arr2 = [1, 2, 3] map = Enum.zip(arr1, arr2) |> Enum.into(%{}) IO.inspect(map) # Output: %{a: 1, b: 2, c: 3} In this example, the Enum.zip/2 function creates a list of tuples where each tuple contains an element from arr1 and arr2.
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4 min readOne of the best ways to add a scheduler to Solr is by using a tool such as Apache NiFi. Apache NiFi provides a user-friendly interface for creating data flows and scheduling tasks. You can use NiFi to schedule indexing tasks for Solr, ensuring that your data is regularly updated and searchable.Another option is to use a cron job to schedule indexing tasks for Solr. By setting up a cron job on your server, you can schedule regular tasks to update your Solr index.
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4 min readIn Elixir, the string data type is not considered an enum because strings and enums serve different purposes.Enums are used to represent a fixed set of values and provide functions to work with those values. They are typically used for defining constants or creating a collection of related values.On the other hand, strings are used to represent sequences of characters and are used for storing and manipulating text data.
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7 min readTo periodically remove data from Apache Solr, you can use the Solr DataImportHandler (DIH) to schedule regular data imports and updates. The DataImportHandler allows you to define a data source and schedule when Solr should import or update data from that source.You can configure the DIH to run at specified intervals using a cron job or a similar scheduling tool to periodically remove outdated or unwanted data from your Solr index.