[IGNITE-370] Print a warning when "allowOverwrite=false" data loader is used for the first time.

• Type: Task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: sprint-1
• Fix Version/s: sprint-2
• Component/s: cache
• Assignee: Artem Shutak
• Reporter: Vladimir Ozerov
• Created: 27/Feb/15 09:01
• Updated: 12/Mar/15 15:57
• Resolved: 11/Mar/15 15:44

Description

Our data loader has "allowOverwrite=false" by default. It means that existing cache entries will not be overwritten by data loader. This is done for performance reasons, but might be counterintuitive for the user.
Need to print a single warning when data loader with such configuration is used for the first time.

Issue Links

• is part of: IGNITE-394 Rename dataloader to datastreamer