Microsoft CRM SDK Advanced Developer Extensions Linq Cache Issue

There has been a significant improvement in the XRM Linq provider in the 4.0.13 SDK that allows you to specify how you want your DataContext to use caching.  One thing I noticed was I had to change my default Service to use the disabled cached to get it to use the Microsoft.Xrm.Client.Services.OrganizationService which is the “un-cached” service. 

 

There seems to be a noticeable speed improvement for the initial connection time and I don’t see any difference in query time using the un-cached service.

 

Sample web.config entries (2kb XML file)

Checking Java memory usage on a Linux server

A customer reported slowness in a production system, so I ran the following commands to check the state of the memory usage (since recently we had out-of-memory errors):

 

ps -ef|grep java

jmap -heap <pid>

 

 

The output:

 

Attaching to process ID 1715, please wait...

Debugger attached successfully.

Server compiler detected.

JVM version is 14.0-b16

 

using thread-local object allocation.

Parallel GC with 2 thread(s)

 

Heap Configuration:

   MinHeapFreeRatio = 40

   MaxHeapFreeRatio = 70

   MaxHeapSize      = 2015363072 (1922.0MB)

   NewSize          = 2686976 (2.5625MB)

   MaxNewSize       = 17592186044415 MB

   OldSize          = 5439488 (5.1875MB)

   NewRatio         = 2

   SurvivorRatio    = 8

   PermSize         = 21757952 (20.75MB)

   MaxPermSize      = 134217728 (128.0MB)

 

Heap Usage:

PS Young Generation

Eden Space:

   capacity = 368246784 (351.1875MB)

   used     = 259936376 (247.89464569091797MB)

   free     = 108310408 (103.29285430908203MB)

   70.58754815900849% used

From Space:

   capacity = 11534336 (11.0MB)

   used     = 11502000 (10.969161987304688MB)

   free     = 32336 (0.0308380126953125MB)

   99.71965443004261% used

To Space:

   capacity = 12451840 (11.875MB)

   used     = 0 (0.0MB)

   free     = 12451840 (11.875MB)

   0.0% used

PS Old Generation

   capacity = 122290176 (116.625MB)

   used     = 76169032 (72.64044952392578MB)

   free     = 46121144 (43.98455047607422MB)

   62.285487265959944% used

PS Perm Generation

   capacity = 88211456 (84.125MB)

   used     = 39361424 (37.53797912597656MB)

   free     = 48850032 (46.58702087402344MB)

   44.62166909477155% used

 

Severn River Cruise on the Mobjack Bay

The weather around Veterans Day 2010 was absolutely stunning; Crystal clear blue skies, 65F, and a fresh 15-20Kts out of the NE.  I got permission to take the Alberg 22 docked near Yorktown, VA for a two-day solo cruise.  With the wind creating Small Craft Advisory conditions, I was thinking of heading NW up the York see West Point from the water and then find a little creek to tuck into.  As I headed out into the York, I was surprised to find ideal flat water conditions.  I realized there was quite a bit of protection from the land, but it was so tempting to head east…so that’s what I did.  As I got nearer to the Guinea flats, the wind picked up.  As I cleared the land and the full fetch of the Mobjack was felt, the waves were a short steep 3-5’ seas.  The Alberg could really have used a reef at this point, but easing the sheet just a little helped with the weather helm.  The boat kept a stead 4.5-5 kts with a nice motion.

 

Being a mid-November Thursday, there weren’t a lot of boats on the wather, so I was relieved to see a 50’ M/V and a little later, I saw what looked like two boats sailing really close together.  Later this turned out to be a gaff-rigged schooner that I followed into the Severn River.  I headed up the North branch and noticed what looked like a large sailboat behind a spit of land.  The tide was about 3’ above normal so it seemed like my 3’ draft should have no trouble getting back there.  I was rewarded with a beautiful little anchorage that was surrounded by some gorgeous Matthew’s County properties.

 

I didn’t have too many chances to snap pictures while sailing (solo SCA kept my attention), but the anchorage afforded an amazing sunset:

http://picasaweb.google.com/snyd1437/ChesapeakBay#

IIS 404 error!!! It's now 2am...thank you very much Microsoft security team

http://support.microsoft.com/kb/315122

 

By default, when IIS is installed on any version of the Windows Server 2003 family, IIS only serves static content (HTML).