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New Post: data been replicated on replication server slowly

pkb — Wed, 26 Sep 2012 15:16:40 GMT

Hello All,

I am trying to create a demo using SharedCache.

1. I have configured two servers, one acts as main server and other acts as replicated server. Following are the config section.

-> Config of main server:

<replicatedSharedCache defaultProvider="ServerSharedCacheProvider">
    <serverSetting 
			ServiceCacheIpAddress="xxx.xxx.xxx.66" 
			ServiceCacheIpPort="58888" 
			SharedCacheVersionNumber="3.0.5.1" 
			LoggingEnable="1" 
			ServiceFamilyMode="1" 
			CacheAmountOfObjects="-1" 
			CacheAmountFillFactorInPercentage="90" 
			ServiceCacheCleanup="LRU" 
			ServiceCacheCleanupThreadJob="3600000"
			TcpServerMaxThreadToSet="-1" 
			TcpServerMinThreadToSet="-1"
			SocketPoolMinAvailableSize="25"
			SocketPoolValidationInterval="01:00:00"
			SocketPoolTimeout="01:00:00"
			/>
		<!--
			SocketPoolMinAvailableSize="5"
			SocketPoolValidationInterval="00:02:00"
			SocketPoolTimeout="00:02:00"
		-->
    <replicatedServers>
      <add key="SrvZh02" ipaddress="xxx.xxx.xxx.113" port="58888" />
      <!-- DO NOT DEFINE THE INSTANCE ITSELF !!! IT WILL BE AUTOMATICALLY REMOVED AT RUNTIME -->
    </replicatedServers>

-> Config of replicated server:

<replicatedSharedCache defaultProvider="ServerSharedCacheProvider">
    <serverSetting 
			ServiceCacheIpAddress="xxx.xxx.xxx.113" 
			ServiceCacheIpPort="58888" 
			SharedCacheVersionNumber="3.0.5.1" 
			LoggingEnable="1" 
			ServiceFamilyMode="1" 
			CacheAmountOfObjects="-1" 
			CacheAmountFillFactorInPercentage="90" 
			ServiceCacheCleanup="LRU" 
			ServiceCacheCleanupThreadJob="3600000"
			TcpServerMaxThreadToSet="-1" 
			TcpServerMinThreadToSet="-1"
			SocketPoolMinAvailableSize="25"
			SocketPoolValidationInterval="01:00:00"
			SocketPoolTimeout="01:00:00"
			/>
		<!--
			SocketPoolMinAvailableSize="5"
			SocketPoolValidationInterval="00:02:00"
			SocketPoolTimeout="00:02:00"
		-->
    <replicatedServers>
      <add key="SrvZh02" ipaddress="xxx.xxx.xxx.66" port="58888" />
      <!-- DO NOT DEFINE THE INSTANCE ITSELF !!! IT WILL BE AUTOMATICALLY REMOVED AT RUNTIME -->
    </replicatedServers>

2. I have also setup one client (config as below):

<indexusNetSharedCache defaultProvider="IndexusSharedCacheProvider">
    <clientSetting SharedCacheVersionNumber="3.0.5.1" LoggingEnable="1" CompressionEnabled="0" CompressionMinSize="1024000" HashingAlgorithm="Hashing" SocketPoolMinAvailableSize="25" SocketPoolValidationInterval="00:20:00" SocketPoolTimeout="00:20:00"/>
   
    <servers>
      <add key="localhost" ipaddress="xxx.xxx.xxx.66" port="58888"/>
      
    </servers>
    <replicatedServers>
      <add key="srvzh02" ipaddress="xxx.xxx.xxx.113" port="58888" />
     
    </replicatedServers>
    <providers>
      <add name="IndexusSharedCacheProvider" type="SharedCache.WinServiceCommon.Provider.Cache.IndexusSharedCacheProvider, SharedCache.WinServiceCommon"/>
    </providers>
  </indexusNetSharedCache>

========================================

Now in the client I am creating object of dummy class "Person" and running a loop from 1 to 100000, assigning values to object of class "Person" and adding that in the cache, so in short I am adding 100000 objects (data) in cache.

Next I am trying to get the count of objects (data) added in cache using GetAllKeys() method (as below):

List<string> lstKeys = IndexusDistributionCache.SharedCache.GetAllKeys("xxx.xxx.xxx.66");
Literal1.Text = Convert.ToString(lstKeys.Count);

If we note, I am getting all keys from main server defined (IP - xxx.xxx.xxx.66) and I get the proper count i.e. 100000

But if I try to get all keys from replicated server using IP - xxx.xxx.xxx.113 as GetAllKeys("xxx.xxx.xxx.113".

I do not get the count (100000) immediately, rather the count is increasing slowly

So, data is not getting replicated immediately on replication server and all total 100000 records get replicated after almost 20 minutes.

New Post: Sharedcache as a temporary storage framework

mciureanu — Mon, 24 Sep 2012 08:37:52 GMT

Hello. I was wondering if I can use a replicated Sharedcache instance (on two machines) to store some temporary data (the data should be available for 5-10 minutes for example).

- Does sharedcache guarantee that it will not remove the data for the amount of time I configure it? (ASP.NET cache for example doesn't do that, even if there is enough memory)?

- In replicated mode, does sharedcache guarantee that the data will replicate before the call returns?

Thank you

New Post: Shared Cache compatible with cloud

Ask_76 — Mon, 16 Apr 2012 05:40:06 GMT

Hi,

Can anyone help me to understand, if shared cache is cloud compatible.I am not able to find any such help in discussions.

Please help, this will help us to decide the approach further.

Thanks in advance!!

New Post: Thinking to use 3.0.5.2

Ask_76 — Fri, 13 Apr 2012 05:07:54 GMT

Hi Ryan,

I'd also like to use session state provider in my application.can you please help me to get the version 3.0.5.2?

Thanks in advance!

New Post: Shared Cache compatible with cloud

Ask_76 — Thu, 12 Apr 2012 13:47:05 GMT

Hi,

I am very new to shared cache.I found its a very good toll to implement advance caching.I just need the information that is this compatible with cloud.

We are planning to move our application in cloud environment in future.Please help to understand the same and plan further.

Thanks,

New Post: Change notification

ronischuetz — Wed, 07 Mar 2012 17:24:57 GMT

thats def. a different topic and is not supported .. the system was not designed to support client notifications.

New Post: Change notification

ksv510 — Wed, 07 Mar 2012 16:40:41 GMT

It can be done in this way. But I have to notificate all other nodes that data was changed.

Thanks for your answer.

New Post: Change notification

ronischuetz — Wed, 07 Mar 2012 15:17:55 GMT

this is an example how to use sharedcache: http://sharedcache.codeplex.com/SourceControl/changeset/view/80959#482695

/// <summary>
/// The simple method how to add data to the cache.
/// </summary>
/// <param name="key">The key.</param>
/// <param name="value">The value.</param>
public static void CacheAdd(string key, object value)
{

// e.g. here you can add a pre-add event over an delegate or so

IndexusDistributionCache.SharedCache.Add(key, value);

// e.g. here you can add a post-add event over an delegate or so

}

that is what i meant by using a wrapper .. hope that clarifies it.

regards,

Roni

On Wed, Mar 7, 2012 at 2:04 PM, ksv510 <notifications@codeplex.com> wrote:

From: ksv510

Can you show me some example or tell me about some starting ponit?

Read the full discussion online.

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Kind regards,
Roni Schuetz

speed up your .net app's - http://www.sharedcache.com/

New Post: IP Address Vs Host Name

fryedfish — Wed, 07 Mar 2012 13:43:01 GMT

No, unless you add support for it

New Post: High sustained CPU utilization

fryedfish — Wed, 07 Mar 2012 13:41:17 GMT

By more nodes i mean more server instances. If you overload any one server it effectively crashes and you get high processor usage behaviour. Also be careful to not over fill each server instances. As soon as the Garbage collector gets agressive ( low memory conditions) the processor spends most of its time in GC.

New Post: Dynamic scaling of distributed cache

fryedfish — Wed, 07 Mar 2012 13:35:04 GMT

One major issue with this is that the shared cache implementation of ketama is not correct. Adding one extra node has a very big impact of the position of each object in the cluster. Effect is that as soon as you add a new node it pretty much invalidates the entire cache, causing lots of cache misses.

New Post: Change notification

ksv510 — Wed, 07 Mar 2012 13:04:23 GMT

Can you show me some example or tell me about some starting ponit?

New Post: Change notification

ronischuetz — Tue, 06 Mar 2012 19:49:25 GMT

The easiest way is to write your own wrapper around the client lib and add your specific notify code

Kind regards,

Roni Schuetz

Sent from mobile

On 06.03.2012, at 10:41, "ksv510" <notifications@codeplex.com> wrote:

From: ksv510

Hi all,

How can I get a notification about state changes? For example, i am adding some data, after that i want to get a notification, that the data was added.

New Post: Change notification

ksv510 — Tue, 06 Mar 2012 09:40:57 GMT

Hi all,

How can I get a notification about state changes? For example, i am adding some data, after that i want to get a notification, that the data was added.

New Post: memory maxium usage?

ronischuetz — Thu, 23 Feb 2012 21:35:32 GMT

http://www.sharedcache.com/cms/shared_cache_configuration_server.aspx

Kind regards,

Roni Schuetz

Sent from mobile

On 23.02.2012, at 17:09, "accacc" <notifications@codeplex.com> wrote:

From: accacc

is there any config for memory maxium usage for caching?

example

i set 300mb for caching on my server,if cache reach maxiumsize delete all low priority datas?

New Post: memory maxium usage?

accacc — Thu, 23 Feb 2012 16:09:15 GMT

is there any config for memory maxium usage for caching?

example

i set 300mb for caching on my server,if cache reach maxiumsize delete all low priority datas?

New Post: Thinking to use 3.0.5.2

calvin464 — Wed, 08 Feb 2012 00:03:52 GMT

Hi Ryan,

can you please how to get version 3.0.5.2 with session state provider config. I'd like to use this for my production servers soon. Thanks

New Post: Dynamic scaling of distributed cache

erhhung — Mon, 02 Jan 2012 05:35:47 GMT

I haven't found any guidance or discussion on the best practice for dynamically scaling a distributed cache configuration without restarting all clients.

I'd like to deploy IIS web server instances on EC2, each with an install of SharedCache server. In a typical cloud app, I plan on spinning up new web server instances behind a load balancer when the load requires it, and shut down instances when the load decreases.

In such operation, I obviously won't know all of the server IPs ahead of time and specify them in the client config file. Can I simply add a new IndexusServerSetting object to the client's IndexusDistributionCache.SharedCache.ServersList collection after caching operations have begun, and the client will immediately and automatically partition key hashes onto the new node? All clients should do this at the same time, ideally, so I plan on using a messaging service like RabbitMQ to notify each web server instance when a node appears or disappears.

I'd obviously like a solution where I don't have to reconfigure all IIS web.config files and restart them just because I added a new SharedCache node.

New Post: Which Release works with .net Framework v2.0?

vincent_zhang — Sat, 24 Dec 2011 04:37:20 GMT

In the sharedcache，the class "Serialization" is supported by framework3.5, so now sharedcache must run at dotnet framework 3.5 .

But, we are optimizing the serialize method , i think new mode may be run at v2.0.

New Post: Buffer cannot be null. Parameter name: buffer

msmsq — Tue, 20 Dec 2011 09:04:28 GMT

This is a bug.

There is a method: Formatters.Serialization.BinaryDeSerialize<T>(byte[] serializedObject), it changes byte[] to T.

When we get nothing from the cache, the method will get null and can not change it to T, so we get the error.

We can modify the method by add follow codes at the starting line:

if (serializedObject == null) return default(T);

Or we can ensure the msg.Payload is not null before BinaryDeSerialize. For example:

In IndexusSharedCacheProvider.cs there is a method: Get<T>(string key),

we can change if(CacheUtil.Get(msg)) to if(CacheUtil.Get(msg) && msg.Payload != null).

You can have a try.