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Shards and replicas in Elasticsearch

I am trying to understand what shard and replica is in Elasticsearch, but I didn't manage to understand it. If I download Elasticsearch and run the script, then from what I know I have started a cluster with a single node. Now this node (my PC) have 5 shards (?) and some replicas (?). ...
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How do I get whole and fractional parts from double in JSP/Java?

How do I get whole and fractional parts from double in JSP/Java ? If the value is 3.25 then I want to get fractional =.25 , whole = 3 ...
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Are trailing commas in arrays and objects part of the spec?

Are trailing commas standard in JavaScript, or do most browsers like Chrome and Firefox just tolerate them? 6 Answers ...
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Auto Scale TextView Text to Fit within Bounds

...ize wrapping text in a TextView so that it will fit within its getHeight and getWidth bounds. I'm not simply looking for a way to wrap the text- I want to make sure it both wraps and is small enough to fit entirely on the screen. ...
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How to sort an array in Bash

...set IFS Supports whitespace in elements (as long as it's not a newline), and works in Bash 3.x. e.g.: $ array=("a c" b f "3 5") $ IFS=$'\n' sorted=($(sort <<<"${array[*]}")); unset IFS $ printf "[%s]\n" "${sorted[@]}" [3 5] [a c] [b] [f] Note: @sorontar has pointed out that care is re...
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Should I use multiplication or division?

... Thanks for the tip on using the time command for benchmarking! – Edmundito Oct 22 '08 at 17:11 2 ...
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Java HashMap performance optimization / alternative

...or every object: public int hashCode() { // assume that both a and b are sorted return a[0] + powerOf52(a[1], 1) + powerOf52(b[0], 2) + powerOf52(b[1], 3) + powerOf52(b[2], 4); } public static int powerOf52(byte b, int power) { int result = b; for (int i = 0; i < p...
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What are the best JVM settings for Eclipse? [closed]

...gain: "eclipse.ini take 3" the settings strike back! Eclipse Helios 3.6 and 3.6.x settings alt text http://www.eclipse.org/home/promotions/friends-helios/helios.png After settings for Eclipse Ganymede 3.4.x and Eclipse Galileo 3.5.x, here is an in-depth look at an "optimized" eclipse.ini settin...
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Useful code which uses reduce()? [closed]

...uses reduce() function in python? Is there any code other than the usual + and * that we see in the examples? 24 Answers ...
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Understanding the Event Loop

I am thinking about it and this is what I came up with: 3 Answers 3 ...