[mapguide][MG359][New] Long running requests cause Linux Server to exit after MapAg...

[Steve Dang]

You can view the artifact detail at the following URL:

    https://mapguide.osgeo.org/servlets/Scarab/id/MG359

Type
 Defect

Artifact ID
 MG359 (Long running requests cause Linux Server to exit after MapAgent bails)

Reported by
 Steve Dang
 stevedang (steve.dang at autodesk.com)

New artifact details:
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- Artifact Status set to new value
  New
- Priority set to new value
  P1
- Description set to new value
  Long running requests cause Linux Server to exit after MapAgent bails.

SIGPIPE is a connection failure and should not be considered fatal.  According to Linux documentation, handling the SIGPIPE will cause the ::send to return an EPIPE error.

- Target milestone set to new value
  1.0.2
- Component set to new value
  Server
- Subcomponent set to new value
  Core
- Platform set to new value
  All
- Defect Severity set to new value
  High
- Artifact created
- Operating system set to new value
  Linux
- Summary set to new value
  Long running requests cause Linux Server to exit after MapAgent bails
- Version set to new value
  1.0.1
- Steps to Reproduce set to new value
  Create a tiled map so that it takes a long time to render tiles - typically 2 seconds or more.

Bring up the tiled map in the Ajax Viewer and begin panning and zooming.  The viewer generates 25+ tile requests.  Since the tiles take so long to generate,  the MapAgent will be forced to exit by FastCGI.  In some cases, the Server will be writing the tile back to the Agent when it kicks out.  If this happens, the server receives a SIGPIPE and exits.


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