Re: [Mono-dev] Mono - CreateProcess error
Honey, Steve wrote: > Help! Hey, Steve. I've been watching this one, too. For months. The latest bug is filed as: http://bugzilla.ximian.com/show_bug.cgi?id=79286 The only workaround I know of at this point (other than, say, rebooting every now and then) is to periodically empty the contents of the ~/.wapi directory. You can do this while the program's running, say, every ten minutes, or just as you've finished one run of data. At least, I *think* that works. It's such a finicky problem, I can never be sure of a real fix. --Brian ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Mono - CreateProcess error
Brian Crowell wrote: > At least, I *think* that works. It's such a finicky problem, I can never be > sure > of a real fix. Check that. We just received reports in this morning from our application. This doesn't clear or disable WAPI at all. Looks like the next alternative would be to shut down the Mono process, delete the contents of ~/.wapi, and restart the Mono process. --Brian ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Mono - CreateProcess error
Hello, > A search of google says this was a bug which was supposed to be > corrected in 1.1.16. I was running 1.1.13 so I upgraded to 1.1.17 but > still have the problem. I also tried adding Process.Dispose() to the > code but that hasn’t help either (don’t know if it should have, but > I’m desperate). > > > > Are there other workarounds I can try? (I need to make system calls > from the application) One possible workaround is to not use the CreateProcess which consumes these wapi handles but instead P/Invoke into "system" or g_spawn. I wonder if you are calling too many processes in quick succession, so its just a matter of not enough time to clean up those handles/. ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Mono - CreateProcess error
Honey, Steve wrote: > A search of google says this was a bug which was supposed to be > corrected in 1.1.16. I was running 1.1.13 so I upgraded to 1.1.17 but > still have the problem. I also tried adding Process.Dispose() to the > code but that hasn't help either (don't know if it should have, but I'm > desperate). Try calling proc.WaitForExit() if you don't already. Robert ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Mono - CreateProcess error
Miguel de Icaza wrote: > I wonder if you are calling too many processes in quick succession, so > its just a matter of not enough time to clean up those handles/. That's not the case. I've had long-running programs that would wait several minutes between invocations, and they also suffer from this. As I explain in the bug report, even creating a Process and failing to call Dispose will not cause a problem by itself. Yes, there may be more Process handles in the table at once, but the garbage collector is pretty quick at cleaning them up, and the most I've seen in the table this way is maybe twenty, a far cry from the table's limit of 4096. No, the handle leak problem happens regardless of how the C# program chooses to treat its resources. Disposing of the Process object will clean up most handles instantly, but regardless of whether you call Dispose, some handles will be leaked. And if your program runs for a long time, it will eventually hang the Mono process. --Brian ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Mono - CreateProcess error
Same here regarding the frequency of the invocations. My application makes the call once every 4 minutes or so. I run 45 of these applications (each processing a different radar site) and I start having problems after 8 hours of constant running. Steve -Original Message- From: Brian Crowell [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 26, 2006 2:12 PM To: Miguel de Icaza Cc: Honey, Steve; mono-devel-list@lists.ximian.com Subject: Re: [Mono-dev] Mono - CreateProcess error Miguel de Icaza wrote: > I wonder if you are calling too many processes in quick succession, so > its just a matter of not enough time to clean up those handles/. That's not the case. I've had long-running programs that would wait several minutes between invocations, and they also suffer from this. As I explain in the bug report, even creating a Process and failing to call Dispose will not cause a problem by itself. Yes, there may be more Process handles in the table at once, but the garbage collector is pretty quick at cleaning them up, and the most I've seen in the table this way is maybe twenty, a far cry from the table's limit of 4096. No, the handle leak problem happens regardless of how the C# program chooses to treat its resources. Disposing of the Process object will clean up most handles instantly, but regardless of whether you call Dispose, some handles will be leaked. And if your program runs for a long time, it will eventually hang the Mono process. --Brian ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Mono - CreateProcess error
Le mardi 26 septembre 2006 à 20:03 +0200, Robert Jordan a écrit :
Honey, Steve wrote:
> A search of google says this was a bug which was supposed to be
> corrected in 1.1.16. I was running 1.1.13 so I upgraded to 1.1.17 but
> still have the problem. I also tried adding Process.Dispose() to the
> code but that hasn't help either (don't know if it should have, but I'm
> desperate).
Try calling proc.WaitForExit() if you don't already.
Robert
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I've written a little program that could help people that having problems with Handles...
It display all process handles, with their associated threads...
I hope it could help!
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// project created on 27/09/2006 at 12:05
using System;
using System.Diagnostics;
using System.Collections;
using System.Text;
using Mono.Posix;
using Mono.Unix;
using System.IO;
using System.Text.RegularExpressions;
namespace wapi_analyser
{
class MainClass
{
Hashtable process=new Hashtable();
Hashtable threads=new Hashtable();
public static void Main(string[] args)
{
MainClass main=new MainClass();
main.Analyse(main.GetData());
main.Display();
}
public void Display()
{
foreach (int pid in process.Keys)
{
// Récupération de la ligne de commande:
string filename="/proc/"+pid+"/cmdline";
string cmdline="";
try
{
StreamReader re = File.OpenText(filename);
cmdline=re.ReadToEnd();
}catch {}
Console.WriteLine("Pid : "+pid+" Nom :"+process[pid]+" cmd : "+cmdline+" Nb threads :"+GetNbThread(pid));
}
}
public int GetNbThread(int pid)
{
int counter=0;
foreach (string id in threads.Keys)
{
if (((int)threads[id])==pid)
counter++;
}
return counter;
}
public void Analyse(string stringdata)
{
string[] rawtable=stringdata.Split('\n');
Console.WriteLine(rawtable.Length+" Handle");
ArrayList sortedtable=new ArrayList();
bool record=false;
foreach (String line in rawtable)
{
if (line.StartsWith("collection"))
record=true;
if (line.Trim().StartsWith("Fileshare"))
{
record=false;
}
if (record)
sortedtable.Add(line);
// Check if this is a process
if (line.IndexOf("[Process]")!=-1)
{
//Console.WriteLine("Process");
// Extraction du nom du process
string pattern=@"\[\s+.*]";
Match match= Regex.Match(line,pattern);
string processname=match.ToString();
processname=processname.Trim(new char[]{'[',']'}).Trim();
//Console.WriteLine(processname);
// Extraction du pid
pattern=@"pid:\s*\S*\s";
match= Regex.Match(line,pattern);
string pid=match.ToString();
pid=pid.Replace("pid: ","");
//Console.WriteLine(pid);
try{
int pidint=int.Parse(pid);
process.Add(pidint,processname);
}catch
{
Console.WriteLine("Erreur while parsing "+pid);
Console.WriteLine("Ligne "+line);
}
}
if (line.IndexOf("[ Thread]")!=-1)
{
//Console.WriteLine("Thread");
// Extraction du thread id
// string pattern=@"tid:\s\S*,";
// Match match= Regex.Match(line,pattern);
// string tid=match.ToString();
// tid=tid.Replace("tid: -","");
// tid=tid.Replace(",","");
// int tidint=int.Parse(tid);
//Console.WriteLine(tidint);
// Recherche du pid du process
string pattern=@"proc:\s\S*,";
Match match= Regex.Match(line,pattern);
string proc=match.ToString();
proc=proc.Replace("proc: ","");
proc=proc.Replace(",","");
int procint=int.Parse(proc);
//Console.WriteLine(procint);
threads.Add(Guid.NewGuid().ToString(),procint);
}
}
//Console.WriteLine(sortedtable.Count);
}
public string GetData()
{
Process process=new Process();
ProcessStartInfo info=new ProcessStartInfo();
info.FileName="/usr/bin/mono";
info.Arguments="--wapi=hps";
info.UseShellExecute = false;
info.RedirectStandardOutput = true;
info.RedirectStandardError = true;
process.StartInfo=info;
process.Start();
string sortie=process.StandardOutput.ReadToEnd();
process.WaitForExit();
//Console.WriteLine(sortie);
return s
