Help: how does a container process requests?

I am reading the specification of servlet, but it just confuse me a lot.
Some one know any of the following please help me. thanx.
how does a container process requests?
does it process one request per thread?
or one request one time?
a new request can only be accepted after the current request responsed?
thanks in advance.

paulxue wrote:
and most important finding is that container execute the doGet or doPost method in different threads for requests.That is, a single HTTP request is entirely executed in a single thread.
does this mean it may be Dangerous to have fields in a servlet? since they may be accessed by many thread at a particular time.The general principles of Java Concurrency hold true for Java servlet as well. Main point is understanding what you are doing.
finally,when will the instance be destroyed?The instance will be destroyed when web application lifecycle ends. For eg: when the servlet engine is stopped or restarted

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Hi
GR processing time means number of workdays required after receiving the material in storage.
Check this link:GR Processing time
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That's the problem, it won't.
internal static string GetAvailabilityGroupFromConnection(SPDatabase db)
if (!UsesAvailabilityConnection(db))
return null;
string dataSource = db.ConnectionString.DataSource;
string cmdText = string.Format(CultureInfo.InvariantCulture, "\r\n SELECT name FROM sys.availability_groups g\r\n JOIN sys.availability_group_listeners l ON g.group_id = l.group_id\r\n WHERE dns_name = '{0}'\r\n ", new object[] { dataSource });
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Trevor Seward
Follow or contact me at...
&nbsp&nbsp
This post is my own opinion and does not necessarily reflect the opinion or view of Microsoft, its employees, or other MVPs.

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How does the sync process manage the task of keeping both sides the same?
Thanks,
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If a file exists on both the local and the network directory it will pop up with a conflict and ask how to resolve it.
If the file is only on the local machine and in a place you have not excluded from syncing it just syncs.
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Help Solving: Does not contain a definition for 'Select'.....

Hi,
Need help solving a Task that returns a Task<IEnumerable<Writing>> so I can fill ObservableCollection<ViewModels.IWritingItemViewModel> Writings for my
Design Time Data Page:
<d:Page.DataContext>
<designTimeData:MainPageViewModel />
</d:Page.DataContext>
My constructor does this:
public MainPageViewModel()
var writings = this.GetGroupsAsync();
this.Writings = new ObservableCollection<ViewModels.IWritingItemViewModel>();
var viewmodels = writings.Select((x, i) => new WritingItemViewModel
Writing = x,
VariableItemSize = (i == 0) ? Common.VariableItemSizes.Writings : Common.VariableItemSizes.Normal,
My var writings = this.GetGroupsAsync(); is:
public async Task<IEnumerable<Writing>> GetGroupsAsync()
await this.GetMenuDataAsync();
return this.Groups;
which in turn gets data from:
private async Task GetMenuDataAsync()
Uri dataUri = new Uri("ms-appx:///DesignTimeData/MenuData.json");
StorageFile file = await StorageFile.GetFileFromApplicationUriAsync(dataUri);
string jsonText = await FileIO.ReadTextAsync(file);
JsonObject jsonObject = JsonObject.Parse(jsonText);
JsonArray jsonArray = jsonObject["Groups"].GetArray();
foreach (JsonValue groupValue in jsonArray)
JsonObject groupObject = groupValue.GetObject();
Writing group = new Writing(
groupObject["UniqueId"].GetString(),
groupObject["IsHeaderInteractive"].GetBoolean(),
groupObject["ViewType"].GetString(),
groupObject["ModelType"].GetString(),
groupObject["Page"].GetString(),
groupObject["Title"].GetString(),
groupObject["Subtitle"].GetString(),
groupObject["ImagePath"].GetString(),
groupObject["Description"].GetString(),
groupObject["GroupId"].GetString()
foreach (JsonValue itemValue in groupObject["WritingMenus"].GetArray())
JsonObject itemObject = itemValue.GetObject();
group.WritingMenus.Add(new WritingMenu(
itemObject["UniqueId"].GetString(),
itemObject["Page"].GetString(),
itemObject["Title"].GetString(),
itemObject["Subtitle"].GetString(),
itemObject["ImagePath"].GetString(),
itemObject["Description"].GetString(),
itemObject["Content"].GetString(),
itemObject["WritingsId"].GetString(),
itemObject["GroupId"].GetString(),
Convert.ToInt32(itemObject["Item"].ValueType)
this.Groups.Add(group);
and I get this Error:
Error 5 'System.Threading.Tasks.Task<System.Collections.Generic.IEnumerable<App1.DesignTimeData.Writing>>'
does not contain a definition for 'Select' and no extension method 'Select' accepting a first argument of type
'System.Threading.Tasks.Task<System.Collections.Generic.IEnumerable<App1.DesignTimeData.Writing>>'
could be found (are you missing a using directive or an assembly reference?)
I'm creating collections of:
public interface IWritingItemViewModel : Common.IVariableSizedItem
Models.Writing Writing { get; set; }
and my class for creating data is:
public class Writing
public Writing(
string uniqueId,
bool isHeaderInteractive,
string templateType,
string viewModelType,
string page,
string title,
string subtitle,
string imagePath,
string description,
string groupId
this.UniqueId = uniqueId;
this.IsHeaderInteractive = isHeaderInteractive;
this.TemplateType = templateType;
this.ViewModelType = viewModelType;
this.Page = page;
this.Title = title;
this.Subtitle = subtitle;
this.ImagePath = imagePath;
this.Description = description;
this.GroupId = groupId;
this.WritingMenus = new ObservableCollection<WritingMenu>();
public string UniqueId { get; private set; }
public bool IsHeaderInteractive { get; private set; }
public string TemplateType { get; private set; }
public string ViewModelType { get; private set; }
public string Page { get; private set; }
public string Title { get; private set; }
public string Subtitle { get; private set; }
public string ImagePath { get; private set; }
public string Description { get; private set; }
public string GroupId { get; private set; }
public virtual ObservableCollection<WritingMenu> WritingMenus { get; private set; }
How can I solve or successfully complete this code?
Thanks!...
Code is like a box of chocolates!...

I looked into your error message again, I found something interesting:
Error 5
'System.Threading.Tasks.Task<System.Collections.Generic.IEnumerable<App1.DesignTimeData.Writing>>'
does not contain a definition
for 'Select'
and no extension method
'Select' accepting a first argument of type
'System.Threading.Tasks.Task<System.Collections.Generic.IEnumerable<App1.DesignTimeData.Writing>>'
could be found (are you missing a
using directive or an assembly reference?)
That means: Task does not contain the definition for Select. This was reasonable, Task does not inherit IEnumerable interface.
var viewmodels = writings.Select((x, i) => new WritingItemViewModel
Writing = x,
VariableItemSize = (i == 0) ? Common.VariableItemSizes.Writings : Common.VariableItemSizes.Normal,
public async Task<IEnumerable<Writing>> GetGroupsAsync()
You need get the IEnumerable<Writing> for Select use. See this for more information:
How to: Return a Value from a Task
--James
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
Click
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we need some information about the purchase process of the SAP C4C System.
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Does anybody have any experience with the first C4C implementation?
The information we get from SAP confused even more than helped.
Thanks and regards
Suita

HI Suita
If you are still looking for help, we specialise in Cloud for Customer implementations and have been through this process. You can contact me at [email protected]
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Are you implementing SAP C4C standalone or with integration to any other system?
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Hello,
I'm trying to run a Text input program out of the Eclipse program and I keep getting this Editor does not contain a main type error - can someone help me
here's the code
import java.io.File;
import java.io.FileNotFoundException;
import java.text.DecimalFormat;
import java.util.Scanner;
import uwcse.io.Input;
public class FileInputExample {
     public static void main(String[] args) {
          // Create a Scanner to read the input file
          String fileName = new Input().readString("Input file name? ");
          System.out.println();
          Scanner scan;
          try {
               scan = new Scanner(new File(fileName));
          } catch (FileNotFoundException e) {
               System.out.println(fileName + " doesn't exist!");
               return;
          // Read the file and count the number of occurences of A, B, ...
          int[] count = new int[26];
          while (scan.hasNextLine()) {
               String line = scan.nextLine();
               line = line.toLowerCase();
               for (int i = 0; i < line.length(); i++) {
                    char c = line.charAt(i);
                    if (c >= 'a' && c <= 'z') {
                         count[c - 'a']++;
          scan.close();
          int length = 0;
          for (int i = 0; i < count.length; i++) {
               length += count;
          // Display the statistics (as an histogram)
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          for (int i = 0; i < count.length && length > 0; i++) {
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}Thanks

First, note that your program uses a non-standard class, "uwcse.io.Input" which is not available to us. Normally that is a show stopper - in this case, it's not, as I was able to eliminate its use.
Your program runs fine, so the error is an Eclipse error unrelated to Java.
You need to ask for help at an Eclipse support site, not here, as these forums are Java language forums.

How does the boot-process assemble the raid?

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I just switched from Debian and CentOS to archlinux on all my machines and I really love it so far!
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read on this forum I'm certain that someone knows the answer.
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/dev/sda /dev/sdb
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/dev/sda1 /dev/sdb1
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245150MB ext3 (home) 245150MB ext3
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And what I did what except loading mdadm-hook of course I used the kernel parameter: ro root=/dev/md0 md=0,/dev/sda2,/dev/sdb2 a.s.o. to
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To obtain that file, run:
abs
This will provide the abs tree of core,extra, and community in /var/abs.
Then you can get the file:
# vim: set ft=sh:
run_hook ()
input="$(cat /proc/cmdline)"
mdconfig="/etc/mdadm.conf"
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modprobe md_mod 2>/dev/null
# if no config file is present create one from command line parameters
if ! [ -e $mdconfig ]; then
#Create initial mdadm.conf
# scan all devices in /proc/partitions
echo DEVICE partitions > $mdconfig
for i in $input; do
case $i in
# raid
md=[0-9]*,/*)
device="$(/bin/replace -s,/ "$i" "=" "")"
array="$(/bin/replace -s/ "$device" "," " devices=")"
echo "ARRAY /dev/$array" >> $mdconfig
RAID_FOUND=1
# partitionable raid
md=d[0-9]*,/*)
device="$(/bin/replace -s=d "$i" "md=" "md_")"
array="$(/bin/replace -s/ "$device" "," " devices=")"
echo "ARRAY /dev/$array" >> $mdconfig
RAID_FOUND=1
# raid UUID
md=[0-9]*,[0-9,a-z]*)
device="$(/bin/replace -s,/ "$i" "=" "")"
array="$(/bin/replace -s/ "$device" "," " uuid=")"
echo "ARRAY /dev/$array" >> $mdconfig
RAID_FOUND=1
# partitionable raid UUID
md=d[0-9]*,[0-9,a-z]*)
device="$(/bin/replace -s=d "$i" "md=" "md_")"
array="$(/bin/replace -s/ "$device" "," " uuid=")"
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RAID_FOUND=1
esac
done
else
RAID_FOUND=1
fi
if [ "$RAID_FOUND" = 1 ]; then
# assemble everything
/sbin/mdassemble.static
fi
The above is what is provided in mine............

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thanks,
a.

Is there any reference I could look up to?
http://www.macwindows.com

PLEASE HELP-HOW DOES A LOADED IPOD GET INTRODUCED TO A DIFFERENT COMPUTER

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Hello,
How exactly does the default 'Login' process on the login page work?
When the following code is executed:
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hi pavel--
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thanks,
raj

Does Replication agent process requests sequentially or parallely?

I would like to know if the replication process is carried out by the agent in a sequential manner or parallel. My focus is on understanding when a replication agent queue is Blocked..?
If for some reason, a page that is activated fails to get replicated does this cause a queue block situation and the requests made further remain pending in the queue?
Thanks

Yes. The queue is processed in first in first out order - if the replication of the first one fails it is put into the queue and retried endless till it succeeds with a time delay of 60000 milliseconds between retries. The log of the agent queue will provide information why the replication fails. More details about sling event and jobs at
http://sling.apache.org/site/eventing-and-jobs.html

Help: how does a container process requests?

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