July 2016
Intermediate to advanced
180 pages
3h 16m
English
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Summary
This chapter looked into how to diagnose node failures, determine the root cause of the problem, and apply corrective action. Some key things we learned are:
- Many errors, from shard failures to slow query performance, are caused by
OutOfMemoryErrorexceptions - Running out of disk space on one node can cause other nodes to run out of disk space as well when shards are reallocated
- Running Elasticsearch alongside other services that require a lot of memory can result in the operating system killing Elasticsearch to free up memory
The next chapter will talk about Elasticsearch 5.0, the next major release of the platform, and it will give you an overview of the various new monitoring tools that will accompany the Elasticsearch 5.0 release.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.