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Paula DiTallo, NoSQL - Big Data Hortonworks Sandbox NiFi

If you've followed the instructions to spin-up NiFi from Ambari, however, the service still does not appear to have started up (read: Ambari shows the service as "red" or stopped; the http URL http://sandbox.hortonworks.... ...

Here is the solution for the error:mysqli_connect(): (HY000/1045): Access denied for user (using password: YES)Solution:Make sure that your password doesn't have special characters and just keep a plain ...

UPDATE on 2017-05-31:It seems to be a bug with version 17.1 (build 14.0.61705.170). I uninstalled that version (including some prerequisite and other components from program list), did a repair on Visual ...

Jim Giercyk,

All DBAs have been asked to copy a database from one SQL instance to another. Even if the instances are identical, the relationship (SID) between the logins and table users are broken. Microsoft includes ...

Changhong Fu, SQL server AlwaysOn Availability Group

This article explains how data synchronization works on SQL Server AlwaysOn Availability Group and some details about how to use sys.dm_hadr_database_replic... table to check replica states.I borrowed ...

Alex Hildyard,

We're currently migrating our Confluence installation, and I was looking around for resources to provide some basic metrics, eg. the total number of (non-private) pages we are currently hosting. It appears ...