Friday, March 18, 2016

SHOCKER: XA Distributed Transactions are only Eventually Consistent!

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Apologies for the tabloid-trash style headline. It could have been worse, I could have gone with my working title of "WARNING: XA will ...
8 comments:
Wednesday, December 16, 2015

MongoDB's BI Connector and pushdown of SQL WHERE clauses

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[ EDIT 05-Apr-2018 : MongoDB BI Connector version 2+ uses a much more rich and powerful approach for pushing down SQL clauses to the databas...
1 comment:
Tuesday, December 15, 2015

Accessing MongoDB data using SQL / ODBC on Linux

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[ EDIT 05-Apr-2018 : MongoDB BI Connector version 2+ uses a different mechanism for connecting to (not using a PostgreSQL driver) - for more...
Friday, December 11, 2015

Accessing MongoDB data from SQL / ODBC on Windows, using the new BI Connector

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[ EDIT 05-Apr-2018 : MongoDB BI Connector version 2+ uses a different mechanism for connecting to (not using a PostgreSQL driver) - for more...
2 comments:
Friday, September 26, 2014

Tracking Versions in MongoDB

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I'm honoured to have been asked by Asya to contribute a guest post to her series on Tracking Versions in MongoDB. Here's Asya...
Thursday, September 11, 2014

Java Using SSL To Connect to MongoDB With Access Control

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In this post I've documented the typical steps you need to enable a Java application to connect to a MongoDB database over SSL. Specifi...
2 comments:
Friday, May 2, 2014

MongoDB Connector for Hadoop with Authentication - Quick Tip

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If you are using the MongoDB Connector for Hadoop and you have enabled authentication on your MongoDB database (eg. auth=true ) you may fi...
2 comments:
Wednesday, April 9, 2014

Parallelising MongoDB Aggregation on a Sharded Database

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EDIT 10-Dec-2021: See my far more up to date blog post which supersedes this:  Achieving At Least An Order Of Magnitude Aggregation Performa...