Re: [Samba] How to detect active users
Am 26.07.2011 19:27, schrieb Jeremy Allison: On Tue, Jul 26, 2011 at 07:18:15PM +0200, Malte Forkel wrote: Am 26.07.2011 19:08, schrieb John Drescher: On Tue, Jul 26, 2011 at 1:04 PM, Malte Forkel malte.for...@berlin.de wrote: Am 26.07.2011 18:42, schrieb Chris Weiss: On Tue, Jul 26, 2011 at 3:06 AM, Malte Forkel malte.for...@berlin.de wrote: Currently, I'm not even sure Samba preserves the kind of state information required to detect the usage scenario I'm interested in. Is there any concept of an open file in Windows/Samba, after all? May be it depends on the application used to open the file? yes, it depends on the application. If the app closes the file and leaves the share, samba honors that. if the app keeps the file handle open, samba does too. So an application (like SciTE) might open a file, read and display its contents, and close the file while continuing to display it. And in contrast, a different application might not close the file while it is displaying its contents? Exactly. John Well, thanks to all of you for your help. In summary then, it looks to me like I won't be able to reliably detect if there is any client out there who would be disappointed if the server shuts down. Of course you will ! smbstatus does this as I keep repeating. If an application has opened and closed the file and keeps it in memory, then the user won't be disappointed if the server is shut down, they'll get an IO error on save and have to do a save as to a local (or other remote) drive. If an application keeps the file open (so it's not safely stored in memory) then smbstatus will show this and you don't shut the server down. You seem to think there's some magic option that will show you client intent, not client activity. Client activity is all you need to care about, and smbstatus show you this. Doesn't matter if applications are running or not, whether that have actual files open is all that matters. Jeremy. Well, I guess some people get disappointed more easily than others :-) I understand that users won't loose any data if the server shuts down and they save as their changes. But having to re-synchronize those files with those on the server once it is up again is something I'd like to avoid. Plus, the open files (from a user perspective) might just be an indicator that the user would like to use other capabilities of the server as well. E.g., he might do remote development of an application on the server using Eclipse on the Windows machine. If I found out that the server had shut down when I try to compile a new version (implicitly saving changed files before), I'd be disappointed. Malte -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] How to detect active users
Il 26/07/2011 10:06, Malte Forkel ha scritto: Am 25.07.2011 23:34, schrieb Chris Weiss: On Mon, Jul 25, 2011 at 3:50 PM, Pascal Valoispascal.val...@devinci.fr wrote: Le 25/07/11 22:44, Jeremy Allison a écrit : On Mon, Jul 25, 2011 at 10:21:35PM +0200, Malte Forkel wrote: Hi, I'm running Samba 3.2.5 on a server which I'd like to shut down when it is not used by any client. Is there a way to detect whether any user has opened a file on the server? smbstatus will tell you. slight correction, smbstatus tells you what file are used and by who, currently. not who HAS opened a file. smbstatus will also tell you who has an active connection to what shares, even if they have yet to actually open some file. while it's possible for someone to open a file in app that reads to ram then closes, such as notepad.exe, making edits and letting them sit without saving for long enough that an smb client would disconnect the session is unlikely given the save often mentality that most have gotten from using PC's. From application crashes, to power outages, to 2 year old kids pressing buttons, save often! Thanks for your suggestions! so depending on what you mean by has opened (opened before and still use it, or opened before and may have close it), smbstatus may be the answer or not. By has opened I mean opened before and still use it. Actually, something more like would be disappointed if the server went down. Ideally, a user might e.g. open a couple of source files to analyze them and after a while (without making changes of saving anything) try to open another file in the same directory. I've done a couple of experiments with smbstatus, specifically its -S and -L options. My clients run Windows 7 SP1 and Windows XP SP3. While a Windows Expolores is opened for a share (or one of its subdirectories), smbstatus -S will list that share. But once the Explorer is closed, the entry is cleared. Similarly, using a File Open Dialog only produces a short lived entry. smbstatus -L does not seem to produce any list entries once a user has opened a file. May be I have to specify some more specific locking in smb.conf? I've also experimented with root preexec and root postexec. Those seem to be triggered at the same time the output of smbstatus -S changes. Currently, I'm not even sure Samba preserves the kind of state information required to detect the usage scenario I'm interested in. Is there any concept of an open file in Windows/Samba, after all? May be it depends on the application used to open the file? I suggest trying smbstatus -B too (shows byterange locks). Also, reading the whole thread it seems to me (FWIW) that the only way to be 100% sure that a samba restart won't disappoint anyone is have smbstatus show no active connection. -- Marcello Romani -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] How to detect active users
clear the logs and monitor for a few days,, If there is not real activity just shut down the service and see if anyone complains they can't access something.. After a few days/weeks/months pull the server. Might not be the perfect scenario but if smbstatus isn't displaying what you need then this might make you feel better about it lol On 07/27/2011 04:33 AM, Malte Forkel wrote: Am 26.07.2011 19:27, schrieb Jeremy Allison: On Tue, Jul 26, 2011 at 07:18:15PM +0200, Malte Forkel wrote: Am 26.07.2011 19:08, schrieb John Drescher: On Tue, Jul 26, 2011 at 1:04 PM, Malte Forkelmalte.for...@berlin.de wrote: Am 26.07.2011 18:42, schrieb Chris Weiss: On Tue, Jul 26, 2011 at 3:06 AM, Malte Forkelmalte.for...@berlin.de wrote: Currently, I'm not even sure Samba preserves the kind of state information required to detect the usage scenario I'm interested in. Is there any concept of an open file in Windows/Samba, after all? May be it depends on the application used to open the file? yes, it depends on the application. If the app closes the file and leaves the share, samba honors that. if the app keeps the file handle open, samba does too. So an application (like SciTE) might open a file, read and display its contents, and close the file while continuing to display it. And in contrast, a different application might not close the file while it is displaying its contents? Exactly. John Well, thanks to all of you for your help. In summary then, it looks to me like I won't be able to reliably detect if there is any client out there who would be disappointed if the server shuts down. Of course you will ! smbstatus does this as I keep repeating. If an application has opened and closed the file and keeps it in memory, then the user won't be disappointed if the server is shut down, they'll get an IO error on save and have to do a save as to a local (or other remote) drive. If an application keeps the file open (so it's not safely stored in memory) then smbstatus will show this and you don't shut the server down. You seem to think there's some magic option that will show you client intent, not client activity. Client activity is all you need to care about, and smbstatus show you this. Doesn't matter if applications are running or not, whether that have actual files open is all that matters. Jeremy. Well, I guess some people get disappointed more easily than others :-) I understand that users won't loose any data if the server shuts down and they save as their changes. But having to re-synchronize those files with those on the server once it is up again is something I'd like to avoid. Plus, the open files (from a user perspective) might just be an indicator that the user would like to use other capabilities of the server as well. E.g., he might do remote development of an application on the server using Eclipse on the Windows machine. If I found out that the server had shut down when I try to compile a new version (implicitly saving changed files before), I'd be disappointed. Malte -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] How to detect active users
I usually just use smbstatus. if I'm looking into a user issue, it's usually smbstatus | grep userid. Then I can get the PID and give it a kill -HUP to load new shares, etc, IF they don;t have any open files. - Original Message - From: Aaron E. ssures...@gmail.com To: samba@lists.samba.org Sent: Wednesday, July 27, 2011 6:21:28 AM Subject: Re: [Samba] How to detect active users clear the logs and monitor for a few days,, If there is not real activity just shut down the service and see if anyone complains they can't access something.. After a few days/weeks/months pull the server. Might not be the perfect scenario but if smbstatus isn't displaying what you need then this might make you feel better about it lol On 07/27/2011 04:33 AM, Malte Forkel wrote: Am 26.07.2011 19:27, schrieb Jeremy Allison: On Tue, Jul 26, 2011 at 07:18:15PM +0200, Malte Forkel wrote: Am 26.07.2011 19:08, schrieb John Drescher: On Tue, Jul 26, 2011 at 1:04 PM, Malte Forkelmalte.for...@berlin.de wrote: Am 26.07.2011 18:42, schrieb Chris Weiss: On Tue, Jul 26, 2011 at 3:06 AM, Malte Forkelmalte.for...@berlin.de wrote: Currently, I'm not even sure Samba preserves the kind of state information required to detect the usage scenario I'm interested in. Is there any concept of an open file in Windows/Samba, after all? May be it depends on the application used to open the file? yes, it depends on the application. If the app closes the file and leaves the share, samba honors that. if the app keeps the file handle open, samba does too. So an application (like SciTE) might open a file, read and display its contents, and close the file while continuing to display it. And in contrast, a different application might not close the file while it is displaying its contents? Exactly. John Well, thanks to all of you for your help. In summary then, it looks to me like I won't be able to reliably detect if there is any client out there who would be disappointed if the server shuts down. Of course you will ! smbstatus does this as I keep repeating. If an application has opened and closed the file and keeps it in memory, then the user won't be disappointed if the server is shut down, they'll get an IO error on save and have to do a save as to a local (or other remote) drive. If an application keeps the file open (so it's not safely stored in memory) then smbstatus will show this and you don't shut the server down. You seem to think there's some magic option that will show you client intent, not client activity. Client activity is all you need to care about, and smbstatus show you this. Doesn't matter if applications are running or not, whether that have actual files open is all that matters. Jeremy. Well, I guess some people get disappointed more easily than others :-) I understand that users won't loose any data if the server shuts down and they save as their changes. But having to re-synchronize those files with those on the server once it is up again is something I'd like to avoid. Plus, the open files (from a user perspective) might just be an indicator that the user would like to use other capabilities of the server as well. E.g., he might do remote development of an application on the server using Eclipse on the Windows machine. If I found out that the server had shut down when I try to compile a new version (implicitly saving changed files before), I'd be disappointed. Malte -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] How to detect active users
Am 25.07.2011 23:34, schrieb Chris Weiss: On Mon, Jul 25, 2011 at 3:50 PM, Pascal Valois pascal.val...@devinci.fr wrote: Le 25/07/11 22:44, Jeremy Allison a écrit : On Mon, Jul 25, 2011 at 10:21:35PM +0200, Malte Forkel wrote: Hi, I'm running Samba 3.2.5 on a server which I'd like to shut down when it is not used by any client. Is there a way to detect whether any user has opened a file on the server? smbstatus will tell you. slight correction, smbstatus tells you what file are used and by who, currently. not who HAS opened a file. smbstatus will also tell you who has an active connection to what shares, even if they have yet to actually open some file. while it's possible for someone to open a file in app that reads to ram then closes, such as notepad.exe, making edits and letting them sit without saving for long enough that an smb client would disconnect the session is unlikely given the save often mentality that most have gotten from using PC's. From application crashes, to power outages, to 2 year old kids pressing buttons, save often! Thanks for your suggestions! so depending on what you mean by has opened (opened before and still use it, or opened before and may have close it), smbstatus may be the answer or not. By has opened I mean opened before and still use it. Actually, something more like would be disappointed if the server went down. Ideally, a user might e.g. open a couple of source files to analyze them and after a while (without making changes of saving anything) try to open another file in the same directory. I've done a couple of experiments with smbstatus, specifically its -S and -L options. My clients run Windows 7 SP1 and Windows XP SP3. While a Windows Expolores is opened for a share (or one of its subdirectories), smbstatus -S will list that share. But once the Explorer is closed, the entry is cleared. Similarly, using a File Open Dialog only produces a short lived entry. smbstatus -L does not seem to produce any list entries once a user has opened a file. May be I have to specify some more specific locking in smb.conf? I've also experimented with root preexec and root postexec. Those seem to be triggered at the same time the output of smbstatus -S changes. Currently, I'm not even sure Samba preserves the kind of state information required to detect the usage scenario I'm interested in. Is there any concept of an open file in Windows/Samba, after all? May be it depends on the application used to open the file? -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] How to detect active users
On Tue, Jul 26, 2011 at 10:06:20AM +0200, Malte Forkel wrote: Currently, I'm not even sure Samba preserves the kind of state information required to detect the usage scenario I'm interested in. Is there any concept of an open file in Windows/Samba, after all? May be it depends on the application used to open the file? Yes, Samba keeps state on all open files. That's what smbstatus shows. -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] How to detect active users
On Tue, Jul 26, 2011 at 3:06 AM, Malte Forkel malte.for...@berlin.de wrote: Currently, I'm not even sure Samba preserves the kind of state information required to detect the usage scenario I'm interested in. Is there any concept of an open file in Windows/Samba, after all? May be it depends on the application used to open the file? yes, it depends on the application. If the app closes the file and leaves the share, samba honors that. if the app keeps the file handle open, samba does too. -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] How to detect active users
Am 26.07.2011 18:31, schrieb Jeremy Allison: On Tue, Jul 26, 2011 at 10:06:20AM +0200, Malte Forkel wrote: Currently, I'm not even sure Samba preserves the kind of state information required to detect the usage scenario I'm interested in. Is there any concept of an open file in Windows/Samba, after all? May be it depends on the application used to open the file? Yes, Samba keeps state on all open files. That's what smbstatus shows. Well, is it a problem with my Samba configuration then? Or a different concept of open? I just used SciTE (a text editor) on a Windows 7 PC to open a text file on the server. When I ran smbstatus immediately after opening the file, it showed entries for the share(s) and the file itself. When I called smbstatus again about a minute later and while the editor window was still open, those entries were gone again. -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] How to detect active users
On Tue, Jul 26, 2011 at 06:54:07PM +0200, Malte Forkel wrote: Am 26.07.2011 18:31, schrieb Jeremy Allison: On Tue, Jul 26, 2011 at 10:06:20AM +0200, Malte Forkel wrote: Currently, I'm not even sure Samba preserves the kind of state information required to detect the usage scenario I'm interested in. Is there any concept of an open file in Windows/Samba, after all? May be it depends on the application used to open the file? Yes, Samba keeps state on all open files. That's what smbstatus shows. Well, is it a problem with my Samba configuration then? Or a different concept of open? I just used SciTE (a text editor) on a Windows 7 PC to open a text file on the server. When I ran smbstatus immediately after opening the file, it showed entries for the share(s) and the file itself. When I called smbstatus again about a minute later and while the editor window was still open, those entries were gone again. The editor closed the file in the meantime. -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] How to detect active users
On Tue, Jul 26, 2011 at 12:54 PM, Malte Forkel malte.for...@berlin.de wrote: Am 26.07.2011 18:31, schrieb Jeremy Allison: On Tue, Jul 26, 2011 at 10:06:20AM +0200, Malte Forkel wrote: Currently, I'm not even sure Samba preserves the kind of state information required to detect the usage scenario I'm interested in. Is there any concept of an open file in Windows/Samba, after all? May be it depends on the application used to open the file? Yes, Samba keeps state on all open files. That's what smbstatus shows. Well, is it a problem with my Samba configuration then? Or a different concept of open? I just used SciTE (a text editor) on a Windows 7 PC to open a text file on the server. When I ran smbstatus immediately after opening the file, it showed entries for the share(s) and the file itself. When I called smbstatus again about a minute later and while the editor window was still open, those entries were gone again. This program could read the whole file to memory and close the file allowing you to edit the closed file. Then when you save it could open it again and save. John -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] How to detect active users
Am 26.07.2011 18:42, schrieb Chris Weiss: On Tue, Jul 26, 2011 at 3:06 AM, Malte Forkel malte.for...@berlin.de wrote: Currently, I'm not even sure Samba preserves the kind of state information required to detect the usage scenario I'm interested in. Is there any concept of an open file in Windows/Samba, after all? May be it depends on the application used to open the file? yes, it depends on the application. If the app closes the file and leaves the share, samba honors that. if the app keeps the file handle open, samba does too. So an application (like SciTE) might open a file, read and display its contents, and close the file while continuing to display it. And in contrast, a different application might not close the file while it is displaying its contents? -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] How to detect active users
On Tue, Jul 26, 2011 at 12:04 PM, Malte Forkel malte.for...@berlin.de wrote: Am 26.07.2011 18:42, schrieb Chris Weiss: On Tue, Jul 26, 2011 at 3:06 AM, Malte Forkel malte.for...@berlin.de wrote: Currently, I'm not even sure Samba preserves the kind of state information required to detect the usage scenario I'm interested in. Is there any concept of an open file in Windows/Samba, after all? May be it depends on the application used to open the file? yes, it depends on the application. If the app closes the file and leaves the share, samba honors that. if the app keeps the file handle open, samba does too. So an application (like SciTE) might open a file, read and display its contents, and close the file while continuing to display it. And in contrast, a different application might not close the file while it is displaying its contents? exactly. Scite and notepad are known to close the file, Word and Excel are known to keep the file open because they only read parts of the file into ram. not sure if that applies to .txt and .csv though, but doc and xls for sure -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] How to detect active users
On Tue, Jul 26, 2011 at 1:04 PM, Malte Forkel malte.for...@berlin.de wrote: Am 26.07.2011 18:42, schrieb Chris Weiss: On Tue, Jul 26, 2011 at 3:06 AM, Malte Forkel malte.for...@berlin.de wrote: Currently, I'm not even sure Samba preserves the kind of state information required to detect the usage scenario I'm interested in. Is there any concept of an open file in Windows/Samba, after all? May be it depends on the application used to open the file? yes, it depends on the application. If the app closes the file and leaves the share, samba honors that. if the app keeps the file handle open, samba does too. So an application (like SciTE) might open a file, read and display its contents, and close the file while continuing to display it. And in contrast, a different application might not close the file while it is displaying its contents? Exactly. John -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] How to detect active users
Am 26.07.2011 19:08, schrieb John Drescher: On Tue, Jul 26, 2011 at 1:04 PM, Malte Forkel malte.for...@berlin.de wrote: Am 26.07.2011 18:42, schrieb Chris Weiss: On Tue, Jul 26, 2011 at 3:06 AM, Malte Forkel malte.for...@berlin.de wrote: Currently, I'm not even sure Samba preserves the kind of state information required to detect the usage scenario I'm interested in. Is there any concept of an open file in Windows/Samba, after all? May be it depends on the application used to open the file? yes, it depends on the application. If the app closes the file and leaves the share, samba honors that. if the app keeps the file handle open, samba does too. So an application (like SciTE) might open a file, read and display its contents, and close the file while continuing to display it. And in contrast, a different application might not close the file while it is displaying its contents? Exactly. John Well, thanks to all of you for your help. In summary then, it looks to me like I won't be able to reliably detect if there is any client out there who would be disappointed if the server shuts down. -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] How to detect active users
On Tue, Jul 26, 2011 at 07:18:15PM +0200, Malte Forkel wrote: Am 26.07.2011 19:08, schrieb John Drescher: On Tue, Jul 26, 2011 at 1:04 PM, Malte Forkel malte.for...@berlin.de wrote: Am 26.07.2011 18:42, schrieb Chris Weiss: On Tue, Jul 26, 2011 at 3:06 AM, Malte Forkel malte.for...@berlin.de wrote: Currently, I'm not even sure Samba preserves the kind of state information required to detect the usage scenario I'm interested in. Is there any concept of an open file in Windows/Samba, after all? May be it depends on the application used to open the file? yes, it depends on the application. If the app closes the file and leaves the share, samba honors that. if the app keeps the file handle open, samba does too. So an application (like SciTE) might open a file, read and display its contents, and close the file while continuing to display it. And in contrast, a different application might not close the file while it is displaying its contents? Exactly. John Well, thanks to all of you for your help. In summary then, it looks to me like I won't be able to reliably detect if there is any client out there who would be disappointed if the server shuts down. Of course you will ! smbstatus does this as I keep repeating. If an application has opened and closed the file and keeps it in memory, then the user won't be disappointed if the server is shut down, they'll get an IO error on save and have to do a save as to a local (or other remote) drive. If an application keeps the file open (so it's not safely stored in memory) then smbstatus will show this and you don't shut the server down. You seem to think there's some magic option that will show you client intent, not client activity. Client activity is all you need to care about, and smbstatus show you this. Doesn't matter if applications are running or not, whether that have actual files open is all that matters. Jeremy. -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
[Samba] How to detect active users
Hi, I'm running Samba 3.2.5 on a server which I'd like to shut down when it is not used by any client. Is there a way to detect whether any user has opened a file on the server? Thanks, Malte -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] How to detect active users
On Mon, Jul 25, 2011 at 10:21:35PM +0200, Malte Forkel wrote: Hi, I'm running Samba 3.2.5 on a server which I'd like to shut down when it is not used by any client. Is there a way to detect whether any user has opened a file on the server? smbstatus will tell you. -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] How to detect active users
Le 25/07/11 22:44, Jeremy Allison a écrit : On Mon, Jul 25, 2011 at 10:21:35PM +0200, Malte Forkel wrote: Hi, I'm running Samba 3.2.5 on a server which I'd like to shut down when it is not used by any client. Is there a way to detect whether any user has opened a file on the server? smbstatus will tell you. slight correction, smbstatus tells you what file are used and by who, currently. not who HAS opened a file. so depending on what you mean by has opened (opened before and still use it, or opened before and may have close it), smbstatus may be the answer or not. -- Pascal Valois Service Informatique Pôle Universitaire Léonard de Vinci -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] How to detect active users
On Mon, Jul 25, 2011 at 3:50 PM, Pascal Valois pascal.val...@devinci.fr wrote: Le 25/07/11 22:44, Jeremy Allison a écrit : On Mon, Jul 25, 2011 at 10:21:35PM +0200, Malte Forkel wrote: Hi, I'm running Samba 3.2.5 on a server which I'd like to shut down when it is not used by any client. Is there a way to detect whether any user has opened a file on the server? smbstatus will tell you. slight correction, smbstatus tells you what file are used and by who, currently. not who HAS opened a file. smbstatus will also tell you who has an active connection to what shares, even if they have yet to actually open some file. while it's possible for someone to open a file in app that reads to ram then closes, such as notepad.exe, making edits and letting them sit without saving for long enough that an smb client would disconnect the session is unlikely given the save often mentality that most have gotten from using PC's. From application crashes, to power outages, to 2 year old kids pressing buttons, save often! -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
