a .net data provider is a collection of objects used to communicate between a data source and a data set in other words a data provider is used to communicate with a data source i e database execute commands against the data source and then retrieve results from the data source
By default, the work item file attachment size limit is 2,048 kilobytes (2 MB). For information on how to change the attachment size limit, see How to: Set the Maximum Attachment Size for Work Items. Consider the implications carefully before changing the default attachment size limit. Changing the attachment limit value will alter the attachment size limit for all Team Foundation Server users.
You can determine what your OS connection limit is by catting nf_conntrack_max. For example: cat /proc/sys/net/netfilter/nf_conntrack_max. You can use the following script to count the number of tcp connections to a given range of tcp ports.By default 1-65535.here are a couple of variables to set the max number of connections. Most likely, you're running out of file numbers first. Check ulimit-n. After that, there are settings in /proc, but those default to the tens of thousands.