e-whisper

Recommendations for optimizing Linux operating machine configurations for container DevOps personnel

AS A PAAS PLATFORM ARCHITECT, CONTAINER-RELATED TECHNOLOGIES (DOCKER, K8S, ETC.) ARE ESSENTIAL.This article is a brief introduction to my own Linux console configuration. Improving productivity, impro

2020-08-31

CloudNative

#K8S #Docker #Container #BestPractices #Linux

Why does the java container recommend using ExitOnOutOfMemoryError instead of HeapDumpOnOutOfMemoryError ?

Why does the java container recommend using ExitOnOutOfMemoryError instead of HeapDumpOnOutOfMemoryError ?

preface I haven’t written an article for a long time, and the reason why I suddenly had a whim today is because yesterday there was such a situation: A memory leak occurred in the user (customer) micr

2020-08-27

Java

#Java #K8S #Container #BestPractices

Using subPath in K8S Volume

Sometimes, there are multiple paths in a pod that need to mount the volume, and it's a pain to do it one by one, so it's time for the subPath to come into play!

2019-11-07

CloudNative

#K8S #BestPractices #Storage

Best practices for making container images

This article is a combination of other articles I've seen on mirroring best practices, and what I've learned in my day job. It includes general container best practices, java, nginx, python container

2019-07-25

CloudNative

#Java #K8S #Docker #containers #BestPractices #Python #OpenShift

NGINX configures SSL support

NGINX configures SSL support

Through NGINX configuration www.e-whisper.com site-wide SSL blessing, enable high-level SSL configuration, enable HSTS, OCSP and other advanced functions. At the same time, remember to modify the URL

2019-06-19

DevOps

#Nginx #Security #Openssl #ssl #https #Linux #Centos

HTTPS Fundamentals and Configuration - 1

HTTPS Fundamentals and Configuration - 1

HTTPS Fundamentals and Configuration Topics. This chapter introduces the encryption protocol.

2019-03-30

DevOps

#Nginx #Security #Openssl #ssl #https #Linux #Centos

Set up an integrated development environment on a cloud server

Set up an integrated development environment on a cloud server

Cloud server initialization operations, including: reinstalling the system; Configuration monitoring; Security reinforcement; Update the software; Install git and install oh-my-zsh

2019-03-27

DevOps

#Docker #Cloud #Python #pipenv

Notes - a mobile SRE operation and maintenance system exchange

Notes - a mobile SRE operation and maintenance system exchange

In 2019, a mobile company shared a note on the transition from a traditional silo IT architecture to an SRE O&M system.

2019-02-27

DevOps

#DevOps #SRE #Organization

Case 3: Analysis of memory overflow in Perm area at runtime of a property and casualty insurance company

Case 3: Analysis of memory overflow in Perm area at runtime of a property and casualty insurance company

The customer noticed a sudden memory spike in Jboss and a significant increase in the JVM's GC time. Checking Dynatrace, it was found that the node had already experienced a memory overflow in the Per

2017-11-02

Java

#Java #Analysis #JVM #OOM

Case 2: Analysis of GC overhead overrun problem in the core system of a life insurance company

Case 2: Analysis of GC overhead overrun problem in the core system of a life insurance company

Alerts are about GC having a large impact on system performance (i.e. the GC overhead of the JVM exceeds the limit) and locate the root cause of the system problem: One is to load a javamelody jar pac

2017-10-31

Java

#Java #Analysis #JVM #OOM