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disk block size vs filesystem block size

2021-04-18
 |  No Comments
 |  linux

In this post, I will briefly describe the differences between disk block size and filesystem block size. In the computer architecture, every byte in the […]

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pitfalls and tips when using self-signed certificate

2021-04-11
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 |  certificate, tls

A few days ago, I encountered an issue when using a self-signed certificate. The use case of the self-signed certificate is simple. I created a […]

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avoid large size of helm chart

2021-04-08
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 |  helm

These days I am trying to integrate one helm chart as a sub chart into another helm chart. However, I encountered a installation problem after […]

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extract files from rpm packages

2021-03-18
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 |  linux, rhel

These days I am developing a feature involving rpm packages. Sometimes I need to extract the files from the rpm package instead of installing it. […]

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database transaction acid

2021-03-01
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 |  database

A few days ago, I encountered the term ‘ACID’ when reading one article about database. I summarized the term in this post after searching it […]

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use openssl to retrieve certificate

2021-02-23
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 |  certificate, openssl

These days I am working on a certificate issue. During the debug session, I got a trick about how to retrieve the certificate from a […]

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Kubernetes pod termination events

2021-02-10
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 |  kubernetes

A few days ago I was assigned a user story to investigate the upgrade of our applicationĀ in Kubernetes environment without breaking the application servicing customers. […]

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simple zookeeper shell commands

2021-02-09
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 |  zookeeper

A few days ago I encountered an issue in a Kafka cluster. Each Kafka instances in the cluster constantly reported the below error logs: [2021-02-01 […]

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setup robot framework environment

2021-02-04
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 |  robot

Robot Framework is widely used in our company to do webapp automation testing. This post lists the required steps to setup the environment for theĀ robot […]

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install chrome in ubuntu and rhel linux

2021-02-03
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 |  linux

Chrome is an excellent web browser nowadays. It is widely used by normal users and web developers in Microsoft Windows OS. Sometimes, it is also […]

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