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Patch from mcortez to add basic caching to the groups module. This prevents database/network explosions when you have a significant number of group-owned prims in a scene

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This commit is contained in:
John Hurliman
2010-04-14 19:48:40 -07:00
parent 985faf4151
commit 8fa13e3871
2 changed files with 161 additions and 53 deletions
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81
OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/SimianGroupsServicesConnectorModule.cs
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@@ -167,6 +167,9 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
private bool m_debugEnabled = false;
private ExpiringCache<string, OSDMap> m_memoryCache;
private int m_cacheTimeout = 30;
// private IUserAccountService m_accountService = null;
@@ -203,7 +206,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
return;
}
m_log.InfoFormat("[GROUPS-CONNECTOR]: Initializing {0}", this.Name);
m_log.InfoFormat("[SIMIAN-GROUPS-CONNECTOR]: Initializing {0}", this.Name);
m_groupsServerURI = groupsConfig.GetString("GroupsServerURI", string.Empty);
if ((m_groupsServerURI == null) ||
@@ -214,6 +217,22 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
return;
}
m_cacheTimeout = groupsConfig.GetInt("GroupsCacheTimeout", 30);
if (m_cacheTimeout == 0)
{
m_log.WarnFormat("[SIMIAN-GROUPS-CONNECTOR] Groups Cache Disabled.");
}
else
{
m_log.InfoFormat("[SIMIAN-GROUPS-CONNECTOR] Groups Cache Timeout set to {0}.", m_cacheTimeout);
}
m_memoryCache = new ExpiringCache<string,OSDMap>();
// If we got all the config options we need, lets start'er'up
m_connectorEnabled = true;
@@ -224,7 +243,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
public void Close()
{
m_log.InfoFormat("[GROUPS-CONNECTOR]: Closing {0}", this.Name);
m_log.InfoFormat("[SIMIAN-GROUPS-CONNECTOR]: Closing {0}", this.Name);
}
public void AddRegion(OpenSim.Region.Framework.Scenes.Scene scene)
@@ -657,7 +676,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
};
OSDMap response = WebUtil.PostToService(m_groupsServerURI, requestArgs);
OSDMap response = CachedPostRequest(requestArgs);
if (response["Success"].AsBoolean() && response["Entries"] is OSDArray)
{
OSDArray entryArray = (OSDArray)response["Entries"];
@@ -1086,7 +1105,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
};
OSDMap Response = WebUtil.PostToService(m_groupsServerURI, RequestArgs);
OSDMap Response = CachedPostRequest(RequestArgs);
if (Response["Success"].AsBoolean())
{
return true;
@@ -1113,7 +1132,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
};
OSDMap Response = WebUtil.PostToService(m_groupsServerURI, RequestArgs);
OSDMap Response = CachedPostRequest(RequestArgs);
if (Response["Success"].AsBoolean() && Response["Entries"] is OSDArray)
{
OSDArray entryArray = (OSDArray)Response["Entries"];
@@ -1153,7 +1172,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
};
OSDMap Response = WebUtil.PostToService(m_groupsServerURI, RequestArgs);
OSDMap Response = CachedPostRequest(RequestArgs);
if (Response["Success"].AsBoolean() && Response["Entries"] is OSDArray)
{
OSDArray entryArray = (OSDArray)Response["Entries"];
@@ -1194,7 +1213,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
};
OSDMap Response = WebUtil.PostToService(m_groupsServerURI, RequestArgs);
OSDMap Response = CachedPostRequest(RequestArgs);
if (Response["Success"].AsBoolean() && Response["Entries"] is OSDArray)
{
OSDArray entryArray = (OSDArray)Response["Entries"];
@@ -1234,7 +1253,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
OSDMap response = WebUtil.PostToService(m_groupsServerURI, requestArgs);
OSDMap response = CachedPostRequest(requestArgs);
if (response["Success"].AsBoolean() && response["Entries"] is OSDArray)
{
maps = new Dictionary<string, OSDMap>();
@@ -1272,7 +1291,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
OSDMap response = WebUtil.PostToService(m_groupsServerURI, requestArgs);
OSDMap response = CachedPostRequest(requestArgs);
if (response["Success"].AsBoolean() && response["Entries"] is OSDArray)
{
maps = new Dictionary<UUID, OSDMap>();
@@ -1310,7 +1329,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
};
OSDMap response = WebUtil.PostToService(m_groupsServerURI, requestArgs);
OSDMap response = CachedPostRequest(requestArgs);
if (response["Success"].AsBoolean())
{
return true;
@@ -1323,6 +1342,48 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
}
#endregion
#region CheesyCache
OSDMap CachedPostRequest(NameValueCollection requestArgs)
{
// Immediately forward the request if the cache is disabled.
if (m_cacheTimeout == 0)
{
return WebUtil.PostToService(m_groupsServerURI, requestArgs);
}
// Check if this is an update or a request
if ( requestArgs["RequestMethod"] == "RemoveGeneric"
|| requestArgs["RequestMethod"] == "AddGeneric"
)
{
// Any and all updates cause the cache to clear
m_memoryCache.Clear();
// Send update to server, return the response without caching it
return WebUtil.PostToService(m_groupsServerURI, requestArgs);
}
// If we're not doing an update, we must be requesting data
// Create the cache key for the request and see if we have it cached
string CacheKey = WebUtil.BuildQueryString(requestArgs);
OSDMap response = null;
if (!m_memoryCache.TryGetValue(CacheKey, out response))
{
// if it wasn't in the cache, pass the request to the Simian Grid Services
response = WebUtil.PostToService(m_groupsServerURI, requestArgs);
// and cache the response
m_memoryCache.AddOrUpdate(CacheKey, response, TimeSpan.FromSeconds(m_cacheTimeout));
}
// return cached response
return response;
}
#endregion
}
}