Extend 'slow' request logging to other server outbound requests (forms, rest, async rest) as well as the existing logging on outbound OSD requests.

Also prints out the first 100 chars of any slow request data since this can contain useful info (such as agent ID).

1 files changed, 194 insertions, 79 deletions

diff --git a/OpenSim/Framework/WebUtil.cs b/OpenSim/Framework/WebUtil.cs
index d2aa538..478d2a7 100644
--- a/OpenSim/Framework/WebUtil.cs
+++ b/OpenSim/Framework/WebUtil.cs
@@ -53,19 +53,36 @@ namespace OpenSim.Framework
                 LogManager.GetLogger(
                 MethodBase.GetCurrentMethod().DeclaringType);
 
-        private static int m_requestNumber = 0;
+        /// <summary>
+        /// Request number for diagnostic purposes.
+        /// </summary>
+        public static int RequestNumber = 0;
 
-        // this is the header field used to communicate the local request id
-        // used for performance and debugging
+        /// <summary>
+        /// this is the header field used to communicate the local request id
+        /// used for performance and debugging
+        /// </summary>
         public const string OSHeaderRequestID = "opensim-request-id";
 
-        // number of milliseconds a call can take before it is considered
-        // a "long" call for warning & debugging purposes
+        /// <summary>
+        /// Number of milliseconds a call can take before it is considered
+        /// a "long" call for warning & debugging purposes
+        /// </summary>
         public const int LongCallTime = 500;
 
-        // dictionary of end points
+        /// <summary>
+        /// The maximum length of any data logged because of a long request time.
+        /// </summary>
+        /// <remarks>
+        /// This is to truncate any really large post data, such as an asset.  In theory, the first section should
+        /// give us useful information about the call (which agent it relates to if applicable, etc.).
+        /// </remarks>
+        public const int MaxRequestDiagLength = 100;
+
+        /// <summary>
+        /// Dictionary of end points
+        /// </summary>
         private static Dictionary<string,object> m_endpointSerializer = new Dictionary<string,object>();
-        
 
         private static object EndPointLock(string url)
         {
@@ -128,12 +145,13 @@ namespace OpenSim.Framework
 
         private static OSDMap ServiceOSDRequestWorker(string url, OSDMap data, string method, int timeout, bool compressed)
         {
-            int reqnum = m_requestNumber++;
+            int reqnum = RequestNumber++;
             // m_log.DebugFormat("[WEB UTIL]: <{0}> start osd request for {1}, method {2}",reqnum,url,method);
 
             string errorMessage = "unknown error";
             int tickstart = Util.EnvironmentTickCount();
             int tickdata = 0;
+            string strBuffer = null;
 
             try
             {
@@ -148,7 +166,7 @@ namespace OpenSim.Framework
                 // If there is some input, write it into the request
                 if (data != null)
                 {
-                    string strBuffer =  OSDParser.SerializeJsonString(data);
+                    strBuffer =  OSDParser.SerializeJsonString(data);
                     byte[] buffer = System.Text.Encoding.UTF8.GetBytes(strBuffer);
 
                     if (compressed)
@@ -208,11 +226,18 @@ namespace OpenSim.Framework
             }
             finally
             {
-                // This just dumps a warning for any operation that takes more than 100 ms
                 int tickdiff = Util.EnvironmentTickCountSubtract(tickstart);
                 if (tickdiff > LongCallTime)
-                    m_log.DebugFormat("[WEB UTIL]: osd request <{0}> (URI:{1}, METHOD:{2}) took {3}ms overall, {4}ms writing",
-                                     reqnum,url,method,tickdiff,tickdata);
+                    m_log.InfoFormat(
+                        "[OSD REQUEST]: Slow request to <{0}> {1} {2} took {3}ms, {4}ms writing, {5}",
+                        reqnum,
+                        method,
+                        url,
+                        tickdiff,
+                        tickdata,
+                        strBuffer != null
+                            ? (strBuffer.Length > MaxRequestDiagLength ? strBuffer.Remove(MaxRequestDiagLength) : strBuffer)
+                            : "");
             }
            
             m_log.DebugFormat(
@@ -290,17 +315,17 @@ namespace OpenSim.Framework
 
         private static OSDMap ServiceFormRequestWorker(string url, NameValueCollection data, int timeout)
         {
-            int reqnum = m_requestNumber++;
+            int reqnum = RequestNumber++;
             string method = (data != null && data["RequestMethod"] != null) ? data["RequestMethod"] : "unknown";
             // m_log.DebugFormat("[WEB UTIL]: <{0}> start form request for {1}, method {2}",reqnum,url,method);
             
             string errorMessage = "unknown error";
             int tickstart = Util.EnvironmentTickCount();
             int tickdata = 0;
+            string queryString = null;
 
             try
             {
-                
                 HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
                 request.Method = "POST";
                 request.Timeout = timeout;
@@ -311,7 +336,7 @@ namespace OpenSim.Framework
                 
                 if (data != null)
                 {
-                    string queryString = BuildQueryString(data);
+                    queryString = BuildQueryString(data);
                     byte[] buffer = System.Text.Encoding.UTF8.GetBytes(queryString);
                     
                     request.ContentLength = buffer.Length;
@@ -354,11 +379,19 @@ namespace OpenSim.Framework
             {
                 int tickdiff = Util.EnvironmentTickCountSubtract(tickstart);
                 if (tickdiff > LongCallTime)
-                    m_log.InfoFormat("[WEB UTIL]: form request <{0}> (URI:{1}, METHOD:{2}) took {3}ms overall, {4}ms writing",
-                                     reqnum,url,method,tickdiff,tickdata);
+                    m_log.InfoFormat(
+                        "[SERVICE FORM]: Slow request to <{0}> {1} {2} took {3}ms, {4}ms writing, {5}",
+                        reqnum,
+                        method,
+                        url,
+                        tickdiff,
+                        tickdata,
+                        queryString != null
+                            ? (queryString.Length > MaxRequestDiagLength) ? queryString.Remove(MaxRequestDiagLength) : queryString
+                            : "");
             }
 
-            m_log.WarnFormat("[WEB UTIL]: <{0}> form request to {1} failed: {2}", reqnum, url, errorMessage);
+            m_log.WarnFormat("[SERVICE FORM]: <{0}> form request to {1} failed: {2}", reqnum, url, errorMessage);
 
             return ErrorResponseMap(errorMessage);
         }
@@ -639,8 +672,6 @@ namespace OpenSim.Framework
 
             return new string[0];
         }
-
-
     }
 
     public static class AsynchronousRestObjectRequester
@@ -663,6 +694,12 @@ namespace OpenSim.Framework
         public static void MakeRequest<TRequest, TResponse>(string verb,
                 string requestUrl, TRequest obj, Action<TResponse> action)
         {
+            int reqnum = WebUtil.RequestNumber++;
+            // m_log.DebugFormat("[WEB UTIL]: <{0}> start osd request for {1}, method {2}",reqnum,url,method);
+
+            int tickstart = Util.EnvironmentTickCount();
+            int tickdata = 0;
+
             //            m_log.DebugFormat("[ASYNC REQUEST]: Starting {0} {1}", verb, requestUrl);
 
             Type type = typeof(TRequest);
@@ -673,12 +710,13 @@ namespace OpenSim.Framework
             XmlSerializer deserializer = new XmlSerializer(typeof(TResponse));
 
             request.Method = verb;
+            MemoryStream buffer = null;
 
             if (verb == "POST")
             {
                 request.ContentType = "text/xml";
 
-                MemoryStream buffer = new MemoryStream();
+                buffer = new MemoryStream();
 
                 XmlWriterSettings settings = new XmlWriterSettings();
                 settings.Encoding = Encoding.UTF8;
@@ -700,6 +738,9 @@ namespace OpenSim.Framework
                     requestStream.Write(buffer.ToArray(), 0, length);
                     requestStream.Close();
 
+                    // capture how much time was spent writing
+                    tickdata = Util.EnvironmentTickCountSubtract(tickstart);
+
                     request.BeginGetResponse(delegate(IAsyncResult ar)
                     {
                         response = request.EndGetResponse(ar);
@@ -725,88 +766,108 @@ namespace OpenSim.Framework
 
                     }, null);
                 }, null);
-
-
-                return;
             }
-
-            request.BeginGetResponse(delegate(IAsyncResult res2)
+            else
             {
-                try
+                request.BeginGetResponse(delegate(IAsyncResult res2)
                 {
-                    // If the server returns a 404, this appears to trigger a System.Net.WebException even though that isn't
-                    // documented in MSDN
-                    response = request.EndGetResponse(res2);
-
-                    Stream respStream = null;
                     try
                     {
-                        respStream = response.GetResponseStream();
-                        deserial = (TResponse)deserializer.Deserialize(respStream);
-                    }
-                    catch (System.InvalidOperationException)
-                    {
-                    }
-                    finally
-                    {
-                        respStream.Close();
-                        response.Close();
+                        // If the server returns a 404, this appears to trigger a System.Net.WebException even though that isn't
+                        // documented in MSDN
+                        response = request.EndGetResponse(res2);
+    
+                        Stream respStream = null;
+                        try
+                        {
+                            respStream = response.GetResponseStream();
+                            deserial = (TResponse)deserializer.Deserialize(respStream);
+                        }
+                        catch (System.InvalidOperationException)
+                        {
+                        }
+                        finally
+                        {
+                            respStream.Close();
+                            response.Close();
+                        }
                     }
-                }
-                catch (WebException e)
-                {
-                    if (e.Status == WebExceptionStatus.ProtocolError)
+                    catch (WebException e)
                     {
-                        if (e.Response is HttpWebResponse)
+                        if (e.Status == WebExceptionStatus.ProtocolError)
                         {
-                            HttpWebResponse httpResponse = (HttpWebResponse)e.Response;
-
-                            if (httpResponse.StatusCode != HttpStatusCode.NotFound)
+                            if (e.Response is HttpWebResponse)
                             {
-                                // We don't appear to be handling any other status codes, so log these feailures to that
-                                // people don't spend unnecessary hours hunting phantom bugs.
-                                m_log.DebugFormat(
-                                    "[ASYNC REQUEST]: Request {0} {1} failed with unexpected status code {2}",
-                                    verb, requestUrl, httpResponse.StatusCode);
+                                HttpWebResponse httpResponse = (HttpWebResponse)e.Response;
+    
+                                if (httpResponse.StatusCode != HttpStatusCode.NotFound)
+                                {
+                                    // We don't appear to be handling any other status codes, so log these feailures to that
+                                    // people don't spend unnecessary hours hunting phantom bugs.
+                                    m_log.DebugFormat(
+                                        "[ASYNC REQUEST]: Request {0} {1} failed with unexpected status code {2}",
+                                        verb, requestUrl, httpResponse.StatusCode);
+                                }
                             }
                         }
+                        else
+                        {
+                            m_log.ErrorFormat(
+                                "[ASYNC REQUEST]: Request {0} {1} failed with status {2} and message {3}",
+                                verb, requestUrl, e.Status, e.Message);
+                        }
                     }
-                    else
+                    catch (Exception e)
                     {
                         m_log.ErrorFormat(
-                            "[ASYNC REQUEST]: Request {0} {1} failed with status {2} and message {3}",
-                            verb, requestUrl, e.Status, e.Message);
+                            "[ASYNC REQUEST]: Request {0} {1} failed with exception {2}{3}",
+                            verb, requestUrl, e.Message, e.StackTrace);
                     }
-                }
-                catch (Exception e)
-                {
-                    m_log.ErrorFormat(
-                        "[ASYNC REQUEST]: Request {0} {1} failed with exception {2}{3}",
-                        verb, requestUrl, e.Message, e.StackTrace);
-                }
+    
+                    //  m_log.DebugFormat("[ASYNC REQUEST]: Received {0}", deserial.ToString());
+
+                    try
+                    {
+                        action(deserial);
+                    }
+                    catch (Exception e)
+                    {
+                        m_log.ErrorFormat(
+                            "[ASYNC REQUEST]: Request {0} {1} callback failed with exception {2}{3}",
+                            verb, requestUrl, e.Message, e.StackTrace);
+                    }
+    
+                }, null);
+            }
 
-                //  m_log.DebugFormat("[ASYNC REQUEST]: Received {0}", deserial.ToString());
+            int tickdiff = Util.EnvironmentTickCountSubtract(tickstart);
+            if (tickdiff > WebUtil.LongCallTime)
+            {
+                string originalRequest = null;
 
-                try
-                {
-                    action(deserial);
-                }
-                catch (Exception e)
+                if (buffer != null)
                 {
-                    m_log.ErrorFormat(
-                        "[ASYNC REQUEST]: Request {0} {1} callback failed with exception {2}{3}",
-                        verb, requestUrl, e.Message, e.StackTrace);
+                    originalRequest = Encoding.UTF8.GetString(buffer.ToArray());
+
+                    if (originalRequest.Length > WebUtil.MaxRequestDiagLength)
+                        originalRequest = originalRequest.Remove(WebUtil.MaxRequestDiagLength);
                 }
 
-            }, null);
+                m_log.InfoFormat(
+                    "[ASYNC REQUEST]: Slow request to <{0}> {1} {2} took {3}ms, {4}ms writing, {5}",
+                    reqnum,
+                    verb,
+                    requestUrl,
+                    tickdiff,
+                    tickdata,
+                    originalRequest);
+            }
         }
     }
 
     public static class SynchronousRestFormsRequester
     {
-        private static readonly ILog m_log =
-                LogManager.GetLogger(
-                MethodBase.GetCurrentMethod().DeclaringType);
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
         /// <summary>
         /// Perform a synchronous REST request.
@@ -820,6 +881,12 @@ namespace OpenSim.Framework
         /// the request.  You'll want to make sure you deal with this as they're not uncommon</exception>
         public static string MakeRequest(string verb, string requestUrl, string obj)
         {
+            int reqnum = WebUtil.RequestNumber++;
+            // m_log.DebugFormat("[WEB UTIL]: <{0}> start osd request for {1}, method {2}",reqnum,url,method);
+
+            int tickstart = Util.EnvironmentTickCount();
+            int tickdata = 0;
+
             WebRequest request = WebRequest.Create(requestUrl);
             request.Method = verb;
             string respstring = String.Empty;
@@ -855,6 +922,9 @@ namespace OpenSim.Framework
                     {
                         if (requestStream != null)
                             requestStream.Close();
+
+                        // capture how much time was spent writing
+                        tickdata = Util.EnvironmentTickCountSubtract(tickstart);
                     }
                 }
 
@@ -893,6 +963,18 @@ namespace OpenSim.Framework
                     m_log.DebugFormat("[FORMS]: InvalidOperationException on receiving {0} {1}", verb, requestUrl);
                 }
             }
+
+            int tickdiff = Util.EnvironmentTickCountSubtract(tickstart);
+            if (tickdiff > WebUtil.LongCallTime)
+                m_log.InfoFormat(
+                    "[FORMS]: Slow request to <{0}> {1} {2} took {3}ms, {4}ms writing, {5}",
+                    reqnum,
+                    verb,
+                    requestUrl,
+                    tickdiff,
+                    tickdata,
+                    obj.Length > WebUtil.MaxRequestDiagLength ? obj.Remove(WebUtil.MaxRequestDiagLength) : obj);
+
             return respstring;
         }
     }
@@ -915,17 +997,24 @@ namespace OpenSim.Framework
         /// the request.  You'll want to make sure you deal with this as they're not uncommon</exception>
         public static TResponse MakeRequest<TRequest, TResponse>(string verb, string requestUrl, TRequest obj)
         {
+            int reqnum = WebUtil.RequestNumber++;
+            // m_log.DebugFormat("[WEB UTIL]: <{0}> start osd request for {1}, method {2}",reqnum,url,method);
+
+            int tickstart = Util.EnvironmentTickCount();
+            int tickdata = 0;
+
             Type type = typeof(TRequest);
             TResponse deserial = default(TResponse);
 
             WebRequest request = WebRequest.Create(requestUrl);
             request.Method = verb;
+            MemoryStream buffer = null;
 
             if ((verb == "POST") || (verb == "PUT"))
             {
                 request.ContentType = "text/xml";
 
-                MemoryStream buffer = new MemoryStream();
+                buffer = new MemoryStream();
 
                 XmlWriterSettings settings = new XmlWriterSettings();
                 settings.Encoding = Encoding.UTF8;
@@ -958,6 +1047,9 @@ namespace OpenSim.Framework
                 {
                     if (requestStream != null)
                         requestStream.Close();
+
+                    // capture how much time was spent writing
+                    tickdata = Util.EnvironmentTickCountSubtract(tickstart);
                 }
             }
 
@@ -1005,6 +1097,29 @@ namespace OpenSim.Framework
                     verb, requestUrl, e.Message, e.StackTrace);
             }
 
+            int tickdiff = Util.EnvironmentTickCountSubtract(tickstart);
+            if (tickdiff > WebUtil.LongCallTime)
+            {
+                string originalRequest = null;
+
+                if (buffer != null)
+                {
+                    originalRequest = Encoding.UTF8.GetString(buffer.ToArray());
+
+                    if (originalRequest.Length > WebUtil.MaxRequestDiagLength)
+                        originalRequest = originalRequest.Remove(WebUtil.MaxRequestDiagLength);
+                }
+
+                m_log.InfoFormat(
+                    "[SynchronousRestObjectRequester]: Slow request to <{0}> {1} {2} took {3}ms, {4}ms writing, {5}",
+                    reqnum,
+                    verb,
+                    requestUrl,
+                    tickdiff,
+                    tickdata,
+                    originalRequest);
+            }
+
             return deserial;
         }
     }