Categories
Archives
- August 2020
- July 2020
- June 2020
- May 2020
- April 2020
- March 2020
- February 2020
- January 2020
- December 2019
- November 2019
- October 2019
- September 2019
- August 2019
- June 2019
- May 2019
- April 2019
- March 2019
- February 2019
- January 2019
- December 2018
- November 2018
- October 2018
- September 2018
- August 2018
- September 2017
- June 2017
- May 2017
- January 2017
- November 2016
- October 2016
- September 2016
- August 2016
- July 2016
- May 2016
- April 2016
- February 2016
- December 2015
- October 2015
- September 2015
- August 2015
- June 2015
- May 2015
- April 2015
- March 2015
- December 2014
- November 2014
- October 2014
- April 2014
- March 2014
- February 2014
- January 2014
- December 2013
- June 2013
- May 2013
- April 2013
- March 2013
- February 2013
- January 2013
- November 2012
- October 2012
- September 2012
- August 2012
- June 2012
- April 2012
- January 2012
- December 2011
- October 2011
- September 2011
- August 2011
- July 2011
- May 2011
- March 2011
- January 2011
- August 2010
- April 2010
- February 2010
Category Archives: Software
Understanding Internals of Chaincode getState/putState calls
If we look at the ChaincodeStub class in $/hyperledger/fabric-chaincode-node/libraries/fabric-shim/lib/stub.js we can see following code The code for the handler (which is of type ChaincodeSupportClient) can be found in $/hyperledger/fabric-chaincode-node/libraries/fabric-shim/lib/handler.js and it looks like this handler is instantiated in $/hyperledger/fabric-chaincode-node/libraries/fabric-shim/lib/chaincode.js which … Continue reading
Posted in Software
Leave a comment
PHP Interactive Shell
I keep forgetting this so many times that I need to make a note of this. This is how you use it: Don’t forget the semicolons and remember PHP variables start with a $
Posted in Software
Leave a comment
Useful SO Queries
CDF of User Reputation https://data.stackexchange.com/stackoverflow/query/1265631/cdf-of-so-reputation#graph According to this, 71% of users have reputation <= 1. These are users who just created an account on the site. 74% of users have reputation <= 10 92% of users have reputation <= 100 … Continue reading
Posted in Software
Leave a comment
failed to create runc console socket: mkdir /tmp/pty064803763: no space left on device: unknown
Got this error today when trying to log into a docker container Then I tried which did not indicate any problem. /tmp is only 24% used. Above is showing all the inodes have been exhausted under /tmp. On listing /tmp … Continue reading
Posted in Software
Leave a comment
Understanding the internals of wordpress php-fpm-alpine image
This post describes the internals of wordpress:php7.4-fpm-alpine Docker image. The wordpress container does nothing but run the following command and wait for it to end which it never does as it spins up a server that listens for incoming connections … Continue reading
Debugging File Upload Issues with WordPress
First make sure you have adequately increased the maximum file size that can be uploaded to wordpress. It is possible that uploads may still not work. On php-fpm-alpine image (and even on apache) wordpress runs under the credentials of www-data … Continue reading
How to change the maximum file size you can upload to wordpress on nginx w/ php-fpm
Apache is a solid web server but my goto environment for wordpress has now changed to running it on Docker with NGINX + php7.4-fpm-alpine. To change the max file size you can upload to wordpress, you will need to make … Continue reading
Complete guide to Azure AD Authentication in Node
There is a lot of documentation available on how to authenticate users against Azure AD. There are even libraries like MSAL.js that are supposed to do the job for you. Unfortunately, for me, I found the Microsoft documentation very noisy … Continue reading
CloudFlare 522 Error. Server does not respond.
This is probably the longest time I have spent on debugging something (4 days) so its worth the effort to write about it. The problem: We built a wordpress site but got CloudFlare 522 error when trying to connect to … Continue reading
Transactions and Locks in MySQL
Refer: https://stackoverflow.com/questions/61212438/why-do-we-need-to-lock-a-mysql-table-during-select-when-beginning-a-transaction/ TL;DR: MySQL docs are wrong Transactions act like a try-catch block. They don’t provide protection against concurrency. If something fails in a transaction, it can be rolled back to undo pending operations that were not committed. To handle … Continue reading
