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Logstash – Process Log File Once and Exit/Stop Logstash After Reading Log File Once

            I have a scenario in Logstash where I want to process a log file in a path once in a day. In my case, a new log file will be added to a path which needs to be processed once and it takes roughly around 10 minutes to process… Read More »

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Spark Error – java.io.IOException: Could not locate executable null\bin\winutils.exe in the Hadoop binaries

           The following error is due to missing winutils binary in the classpath while running Spark application. Winutils is a part of Hadoop ecosystem and is not included in Spark. The actual functionality of your  application may run correctly even after the exception is thrown. But it is better to have it… Read More »

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Elasticsearch Java API – Get Index Type List Mapping

The following is sample Java program to get the list of indices with corresponding type in an Elasticsearch instance. Sample Program: package com.report.test; import java.io.IOException; import java.net.Socket; import java.util.ArrayList; import java.util.Arrays; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Set; import java.util.concurrent.ExecutionException; import org.elasticsearch.action.admin.cluster.state.ClusterStateResponse; import org.elasticsearch.action.admin.indices.mapping.get.GetMappingsRequest; import org.elasticsearch.action.admin.indices.mapping.get.GetMappingsResponse; import org.elasticsearch.client.transport.TransportClient; import org.elasticsearch.cluster.ClusterState; import org.elasticsearch.cluster.metadata.AliasMetaData; import org.elasticsearch.cluster.metadata.IndexMetaData; import… Read More »

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MYSQL on Linux(Ubuntu) keeps crashing – Solution is to create Swap Space

          There are many internet users who face this problem where the MYSQL on their server getting crashed frequently. I personally faced this problem in my WordPress blog in my VPS. This problem occurs due to lack of memory(RAM) space. i.e. when your RAM usage hits the maximum. This problem can… Read More »

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Wireless Chargers to be built in Laptops by Intel and Integrated Device Technology

        Electronic gadgets are all around the world. Every device requires a battery which is usually charged by power chords based on power specification of the device. There are advancements in technology to power up the device in minimal time and research is being done all the year to make it efficient. Now we are into next generation, wireless charging where the… Read More »

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