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Elasticsearch – Apply Nested Filter on Nested (Inner) Aggregation

           The following query can be used to apply filter on nested (inner) aggregation. In our example aggregationName2 is the nested aggregation. The filter (bold content) in the input JSON will be applied only for the aggregation aggregationName2. aggregationName2 takes in the output of aggregationName1, then applies the filter which is then processed by aggregationName2… Read More »

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Reference Graphic Card vs Non-Reference Graphic Card – ALL YOU NEED TO KNOW

Before we get into the term Reference Graphic Card vs Non-Reference Graphic Card, we will first understand the difference between Technology Partners and Manufacturing Partners. Technology Partners are the one who invent technology. Some examples of technology partners are Nvidia and ATI Technologies (AMD) whose focus is to research and develop technologies. Manufacturing partners are… Read More »

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Elasticsearch Java API – Get Type List from given Index

The following is sample Java program to get the list of type for a given index name in an Elasticsearch instance. Sample Program: package com.report.test; import java.util.ArrayList; import java.util.List; import java.util.concurrent.ExecutionException; import org.elasticsearch.action.admin.indices.mapping.get.GetMappingsRequest; import org.elasticsearch.action.admin.indices.mapping.get.GetMappingsResponse; import org.elasticsearch.client.Client; import org.elasticsearch.client.transport.TransportClient; import org.elasticsearch.cluster.metadata.MappingMetaData; import org.elasticsearch.common.collect.ImmutableOpenMap; import org.elasticsearch.common.hppc.cursors.ObjectObjectCursor; import org.elasticsearch.common.settings.ImmutableSettings; import org.elasticsearch.common.settings.Settings; import org.elasticsearch.common.transport.InetSocketTransportAddress; public class SampleProgram{ public static… Read More »

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Cannot delete folder: It is being used by another person or program – How to Solve this Issue

      Many of you might have faced this issue when ejecting pendrive or USB harddrive from the computer. This issue comes when the content of the pendrive pf the external drive being used by the system. For example, consider a word document from a pendrive is opened. Now you will not be able… Read More »

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The Vamp – ENJOY THE AUDIO FROM ANYWHERE

           The world is full of entertainment. Everyone is using mobile phones, laptops, desktop, televisions etc. In most cases users find it difficult hook up their gadgets to external powerful speaker with wires particularly in the case of laptops and mobile phones  Here we have The vamp, a kick starter project which makes the users connect… Read More »

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