When do you need large heap for Elasticsearch?

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When do we need large heap with Elasticsearch?

Running ES 1.5.2 JAVA 1.8_45 Windows 2008 4 nodes of 32 Core 128gb RAM 5TB SSDs (Per machine). My goal is to index about 2.5 billion documents. I am up to 810 million. 30k average per doc. I currently have ES_HEAP_SIZE=30g But I have been experience lots of memory pressure and STW pauses. Example: Currently one node is always above 90% heap usage while the rest are coasting anywhere between 30% and 40%. So it seems that 1 node wont GC??? Only 2 things are happening on the cluster bulk indexing...

Answer:

Don't send the bulk requests only to one node. The same goes for the search requests. The bulk request...

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user432024 at Stack Overflow Mark as irrelevant Undo

Other solutions

I need an information about the heap leaching and recovery of nickel from lateritic nickel ores?

Moreover I also need a simple flowsheet showing the important unit operations and processes used in nickel extraction by heap leaching.

Answer:

I suggest searches with key words “nickel” and “heap leach”, “"nickel...

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material engineer in future at Yahoo! Answers Mark as irrelevant Undo

Why do we need an RDBMS (like MySQL) when an indexing engine like Elasticsearch can be used for querying?

An indexing engine is much faster and can be queried for the same data that we are looking for in an RDBMS, so why do we need an RDBMS then? Are there some specific functions that an indexing engine can't perform?

Answer:

Yes. There are many examples; let me give the one I know best: with highly relational data, an RDBMS...

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Joe Emison at Quora Mark as irrelevant Undo

What is the best client library for elasticsearch?

For our elastic search implementation, currently we are evaluating following client libraries as it simplifies our development effort rather using elasticsearch APIs directly.   1. Jest - REST based client library - Jest Currently maintained by single...

Answer:

The best client library for ElasticSearch is ElasticSearch. No, really. The only reason NOT to use the...

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Rotem Hermon at Quora Mark as irrelevant Undo

What's a tutorial or resource that can explain the DSL pattern in Elasticsearch, so that I can understand it better?

ElasticSearch Query params (DSL query) I have been working with the ElasticSearch from last few months, but still find it complicated when I have to pass an complicated query. I want to run the query which will have to search the multiple "types...

Answer:

I believe I can help for your first example. I ran into the same problem of wanting to return multiple...

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Brian Humphrey at Quora Mark as irrelevant Undo

Answer:

Elasticsearch auto do it by seaching available port from 9300-9400 by default. You could read more here...

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Sang Dang at Quora Mark as irrelevant Undo

C++ writing into the heap "forward"?

This program is suppose to input 3 doubles and store them into heap memory. Then I have to basically reverse the heap so if I input. 50 51 52 at first it will look like this. 52 points to 51 points to 50. When I reverse it, it should read like this in...

Answer:

Try using different parameters at a time, and. Use it for each values.

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Yahoo! Answers Mark as irrelevant Undo

How do i declare an array statically, on a stack, and on a heap in c++?

I need to write three functions in C++: one that declares a large array statically, one that declares the same large array on the stack, and one that creates the same large array from a heap. Each function has to be called at least 100,000 times and...

Answer:

You have the static version and the heap version fine, except for these problems: You forgot the NAME...

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Anne at Yahoo! Answers Mark as irrelevant Undo

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