[mapguide-internals] Tile Cache Problems

[Zac Spitzer]

>
>  When the Fusion or Ajax clients request tiles for the map, you may end up seeing the file IO error message when the removed tiles are accessed.  Are there any other errors about invalid sessions in the log file?

yep, there were some  Error: Session has expired or is invalid. Please
log in again.

Do you think it would be useful to add the session id to this error message?

>
>  Thanks,
>  Trevor
>
>  ________________________________
>
>  I have been having a lot of trouble with the tile service recently,
>
>  lots of file io errors
>
>  against sessions from studio.
>
>
>
>  As sessions don't persist when the server is restarted, shouldn't all
>
>  the sessions folders under
>
>  the tile cache be cleared when the server restarts?
>
>
>
>  I am also seeing lots of errors along the lines of
>
>
>
>  <2008-03-27T14:50:03>                 Administrator
>
>   Error: A file IO exception occurred: C:/Program
>
>  Files/MapGuideOpenSource2.0/Server/Repositories/TileCache/4a4f143a-0000-1000-8000-00188b8b4aed_en_7F0000010B060B050B04_MapDefinition0/S29/BASE
>
>  - 0-35000000/R0/C0/0_1.png
>
>   StackTrace:
>
>   - MgTileServiceHandler.ProcessOperation line 83 file
>
>  d:\buildforgeprojects\mapguide_open_source_v2.0\build_23.8\mgdev\server\src\services\tile\TileServiceHandler.cpp
>
>   - MgOpGetTile.Execute line 150 file
>
>  d:\buildforgeprojects\mapguide_open_source_v2.0\build_23.8\mgdev\server\src\services\tile\OpGetTile.cpp
>
>   - MgServerTileService.GetTile line 263 file
>
>  d:\buildforgeprojects\mapguide_open_source_v2.0\build_23.8\mgdev\server\src\services\tile\ServerTileService.cpp
>
>   - MgByteSink::ToFile line 245 file
>
>  d:\buildforgeprojects\mapguide_open_source_v2.0\build_23.8\mgdev\common\foundation\Data/ByteSink.cpp
>
>   - MgByteSink.ToFile line 220 file
>
>  d:\buildforgeprojects\mapguide_open_source_v2.0\build_23.8\mgdev\common\foundation\Data/ByteSink.cpp        A
>
>  file IO exception occurred: C:/Program
>
>  Files/MapGuideOpenSource2.0/Server/Repositories/TileCache/4a4f143a-0000-1000-8000-00188b8b4aed_en_7F0000010B060B050B04_MapDefinition0/S29/BASE
>
>  - 0-35000000/R0/C0/0_1.png
>
>
>
>  where the 4a4f143a-0000-1000-8000-00188b8b4aed_en_7F0000010B060B050B04_MapDefinition0
>
>  directory doesn't exist
>
>
>
>  --
>
>  Zac Spitzer -
>
>  http://zacster.blogspot.com (My Blog)
>
>  +61 405 847 168
>
>  _______________________________________________
>  mapguide-internals mailing list
>  mapguide-internals at lists.osgeo.org
>  http://lists.osgeo.org/mailman/listinfo/mapguide-internals
>



-- 
Zac Spitzer -
http://zacster.blogspot.com (My Blog)
+61 405 847 168