RE: Identify PID for remote database handle--CLARIFICATION...
To the DBI/DBD list: Let me rephrase this question a bit. I have a perl program running on server A which makes a remote connection to a database running on server B using the DBI/DBD construct of a database handle/statement handle. On server A, the perl program has a process ID, identified by $$ or $PID. On server B where the actual DDL inside the statement handle is running, resources are being consumed by the database to construct the query return set. That resource usage is being accounted for somehow at the OS level on server B. My assumption is that they are assigned a PID by the OS It is this process id which I would like to capture. I hope this clarifies what I am looking for ... Thanks, catharine -Original Message- From: Chris Sarnowski [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 23, 2006 7:04 AM To: dbi-users@perl.org Cc: Drozdowski, Catharine Subject: Re: Identify PID for remote database handle I don't know of any way to do this using DBI or DBD::Oracle. You might get better answers on an Oracle DBA list (try http://www.freelists.org/list/oracle-l or http://www.lazydba.com ) This seems to work in Oracle 9.2, but I just hacked it together in a couple of minutes and it's not thoroughly tested (i.e. testcases = 1 with 100% success). Also, there are probably better ways to find your own SID. This of course assumes that the user has access to the V$ tables (which they probably shouldn't have). select vp.spid from v$process vp, v$session vs where vs.sid = (select sid from v$mystat where rownum = 1) and vp.addr = vs.paddr; I've been thinking about why you might want this and now I'm not sure it's the answer you want anyway. Running sqlplus inside of perl seems redundant for most purposes. And now that I think about it I'm sure DBI/DBD::Oracle can't help you here because it is not going to know anything about the sqlplus connection, just the DBI handle. So it really is off-topic for this list. -Chris On May 22, 2006, at 6:07 PM, Drozdowski, Catharine wrote: How can I find the server pid for a sqlplus session which is logged on remotely inside a perl program... I can find the local PID using $$ or $PID, but how can I find the pid for the statement/database handle which is actually logged onto the database doing the work... Env: Oracle, Solaris Catharine Drozdowski Mentor Graphics Corporation IT Systems Services 1 503 685 7906
RE: Identify PID for remote database handle--CLARIFICATION...
This is somewhat off topic as it has nothing to do with DBI nor Perl. However ... When a connection request is made to an Oracle database instance, the TNS listener receives this request. If the listener is configured to create dedicated sessions, a new process is created, connected to the database instance. This new process opens a socket (tcp) for communicating with the client process. The listener then hands this socket address back to the client program and returns to listening for connection requests. Now, to identify the PID of this new process, someone else has already described the mechanism for getting that information from the DB. If you want DB resource usage, you will need to look at the performance views V$PROCESS, V$SESSION (wait events), and the ASH and AWR views in 10gR2. If you need more information on these views, see the Oracle docs and/or talk with your DBA. -- Ron Reidy Lead DBA Array BioPharma, Inc. -Original Message- From: Drozdowski, Catharine [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 23, 2006 9:32 AM To: dbi-users@perl.org Subject: RE: Identify PID for remote database handle--CLARIFICATION... To the DBI/DBD list: Let me rephrase this question a bit. I have a perl program running on server A which makes a remote connection to a database running on server B using the DBI/DBD construct of a database handle/statement handle. On server A, the perl program has a process ID, identified by $$ or $PID. On server B where the actual DDL inside the statement handle is running, resources are being consumed by the database to construct the query return set. That resource usage is being accounted for somehow at the OS level on server B. My assumption is that they are assigned a PID by the OS It is this process id which I would like to capture. I hope this clarifies what I am looking for ... Thanks, catharine -Original Message- From: Chris Sarnowski [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 23, 2006 7:04 AM To: dbi-users@perl.org Cc: Drozdowski, Catharine Subject: Re: Identify PID for remote database handle I don't know of any way to do this using DBI or DBD::Oracle. You might get better answers on an Oracle DBA list (try http://www.freelists.org/list/oracle-l or http://www.lazydba.com ) This seems to work in Oracle 9.2, but I just hacked it together in a couple of minutes and it's not thoroughly tested (i.e. testcases = 1 with 100% success). Also, there are probably better ways to find your own SID. This of course assumes that the user has access to the V$ tables (which they probably shouldn't have). select vp.spid from v$process vp, v$session vs where vs.sid = (select sid from v$mystat where rownum = 1) and vp.addr = vs.paddr; I've been thinking about why you might want this and now I'm not sure it's the answer you want anyway. Running sqlplus inside of perl seems redundant for most purposes. And now that I think about it I'm sure DBI/DBD::Oracle can't help you here because it is not going to know anything about the sqlplus connection, just the DBI handle. So it really is off-topic for this list. -Chris On May 22, 2006, at 6:07 PM, Drozdowski, Catharine wrote: How can I find the server pid for a sqlplus session which is logged on remotely inside a perl program... I can find the local PID using $$ or $PID, but how can I find the pid for the statement/database handle which is actually logged onto the database doing the work... Env: Oracle, Solaris Catharine Drozdowski Mentor Graphics Corporation IT Systems Services 1 503 685 7906 This electronic message transmission is a PRIVATE communication which contains information which may be confidential or privileged. The information is intended to be for the use of the individual or entity named above. If you are not the intended recipient, please be aware that any disclosure, copying, distribution or use of the contents of this information is prohibited. Please notify the sender of the delivery error by replying to this message, or notify us by telephone (877-633-2436, ext. 0), and then delete it from your system.
RE: Identify PID for remote database handle--CLARIFICATION...
You know I AM a DBA and will withdraw the post as you guys seem to not be able to grasp the concept. -Original Message- From: Reidy, Ron [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 23, 2006 8:51 AM To: Drozdowski, Catharine; dbi-users@perl.org Subject: RE: Identify PID for remote database handle--CLARIFICATION... This is somewhat off topic as it has nothing to do with DBI nor Perl. However ... When a connection request is made to an Oracle database instance, the TNS listener receives this request. If the listener is configured to create dedicated sessions, a new process is created, connected to the database instance. This new process opens a socket (tcp) for communicating with the client process. The listener then hands this socket address back to the client program and returns to listening for connection requests. Now, to identify the PID of this new process, someone else has already described the mechanism for getting that information from the DB. If you want DB resource usage, you will need to look at the performance views V$PROCESS, V$SESSION (wait events), and the ASH and AWR views in 10gR2. If you need more information on these views, see the Oracle docs and/or talk with your DBA. -- Ron Reidy Lead DBA Array BioPharma, Inc. -Original Message- From: Drozdowski, Catharine [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 23, 2006 9:32 AM To: dbi-users@perl.org Subject: RE: Identify PID for remote database handle--CLARIFICATION... To the DBI/DBD list: Let me rephrase this question a bit. I have a perl program running on server A which makes a remote connection to a database running on server B using the DBI/DBD construct of a database handle/statement handle. On server A, the perl program has a process ID, identified by $$ or $PID. On server B where the actual DDL inside the statement handle is running, resources are being consumed by the database to construct the query return set. That resource usage is being accounted for somehow at the OS level on server B. My assumption is that they are assigned a PID by the OS It is this process id which I would like to capture. I hope this clarifies what I am looking for ... Thanks, catharine -Original Message- From: Chris Sarnowski [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 23, 2006 7:04 AM To: dbi-users@perl.org Cc: Drozdowski, Catharine Subject: Re: Identify PID for remote database handle I don't know of any way to do this using DBI or DBD::Oracle. You might get better answers on an Oracle DBA list (try http://www.freelists.org/list/oracle-l or http://www.lazydba.com ) This seems to work in Oracle 9.2, but I just hacked it together in a couple of minutes and it's not thoroughly tested (i.e. testcases = 1 with 100% success). Also, there are probably better ways to find your own SID. This of course assumes that the user has access to the V$ tables (which they probably shouldn't have). select vp.spid from v$process vp, v$session vs where vs.sid = (select sid from v$mystat where rownum = 1) and vp.addr = vs.paddr; I've been thinking about why you might want this and now I'm not sure it's the answer you want anyway. Running sqlplus inside of perl seems redundant for most purposes. And now that I think about it I'm sure DBI/DBD::Oracle can't help you here because it is not going to know anything about the sqlplus connection, just the DBI handle. So it really is off-topic for this list. -Chris On May 22, 2006, at 6:07 PM, Drozdowski, Catharine wrote: How can I find the server pid for a sqlplus session which is logged on remotely inside a perl program... I can find the local PID using $$ or $PID, but how can I find the pid for the statement/database handle which is actually logged onto the database doing the work... Env: Oracle, Solaris Catharine Drozdowski Mentor Graphics Corporation IT Systems Services 1 503 685 7906 This electronic message transmission is a PRIVATE communication which contains information which may be confidential or privileged. The information is intended to be for the use of the individual or entity named above. If you are not the intended recipient, please be aware that any disclosure, copying, distribution or use of the contents of this information is prohibited. Please notify the sender of the delivery error by replying to this message, or notify us by telephone (877-633-2436, ext. 0), and then delete it from your system.
RE: Identify PID for remote database handle--CLARIFICATION...
No, I do not know you are a DBA; maybe YOU cannot describe the problem well enough. -Original Message- From: Drozdowski, Catharine [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 23, 2006 10:11 AM To: Reidy, Ron; dbi-users@perl.org Subject: RE: Identify PID for remote database handle--CLARIFICATION... You know I AM a DBA and will withdraw the post as you guys seem to not be able to grasp the concept. -Original Message- From: Reidy, Ron [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 23, 2006 8:51 AM To: Drozdowski, Catharine; dbi-users@perl.org Subject: RE: Identify PID for remote database handle--CLARIFICATION... This is somewhat off topic as it has nothing to do with DBI nor Perl. However ... When a connection request is made to an Oracle database instance, the TNS listener receives this request. If the listener is configured to create dedicated sessions, a new process is created, connected to the database instance. This new process opens a socket (tcp) for communicating with the client process. The listener then hands this socket address back to the client program and returns to listening for connection requests. Now, to identify the PID of this new process, someone else has already described the mechanism for getting that information from the DB. If you want DB resource usage, you will need to look at the performance views V$PROCESS, V$SESSION (wait events), and the ASH and AWR views in 10gR2. If you need more information on these views, see the Oracle docs and/or talk with your DBA. -- Ron Reidy Lead DBA Array BioPharma, Inc. -Original Message- From: Drozdowski, Catharine [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 23, 2006 9:32 AM To: dbi-users@perl.org Subject: RE: Identify PID for remote database handle--CLARIFICATION... To the DBI/DBD list: Let me rephrase this question a bit. I have a perl program running on server A which makes a remote connection to a database running on server B using the DBI/DBD construct of a database handle/statement handle. On server A, the perl program has a process ID, identified by $$ or $PID. On server B where the actual DDL inside the statement handle is running, resources are being consumed by the database to construct the query return set. That resource usage is being accounted for somehow at the OS level on server B. My assumption is that they are assigned a PID by the OS It is this process id which I would like to capture. I hope this clarifies what I am looking for ... Thanks, catharine -Original Message- From: Chris Sarnowski [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 23, 2006 7:04 AM To: dbi-users@perl.org Cc: Drozdowski, Catharine Subject: Re: Identify PID for remote database handle I don't know of any way to do this using DBI or DBD::Oracle. You might get better answers on an Oracle DBA list (try http://www.freelists.org/list/oracle-l or http://www.lazydba.com ) This seems to work in Oracle 9.2, but I just hacked it together in a couple of minutes and it's not thoroughly tested (i.e. testcases = 1 with 100% success). Also, there are probably better ways to find your own SID. This of course assumes that the user has access to the V$ tables (which they probably shouldn't have). select vp.spid from v$process vp, v$session vs where vs.sid = (select sid from v$mystat where rownum = 1) and vp.addr = vs.paddr; I've been thinking about why you might want this and now I'm not sure it's the answer you want anyway. Running sqlplus inside of perl seems redundant for most purposes. And now that I think about it I'm sure DBI/DBD::Oracle can't help you here because it is not going to know anything about the sqlplus connection, just the DBI handle. So it really is off-topic for this list. -Chris On May 22, 2006, at 6:07 PM, Drozdowski, Catharine wrote: How can I find the server pid for a sqlplus session which is logged on remotely inside a perl program... I can find the local PID using $$ or $PID, but how can I find the pid for the statement/database handle which is actually logged onto the database doing the work... Env: Oracle, Solaris Catharine Drozdowski Mentor Graphics Corporation IT Systems Services 1 503 685 7906 This electronic message transmission is a PRIVATE communication which contains information which may be confidential or privileged. The information is intended to be for the use of the individual or entity named above. If you are not the intended recipient, please be aware that any disclosure, copying, distribution or use of the contents of this information is prohibited. Please notify the sender of the delivery error by replying to this message, or notify us by telephone (877-633-2436, ext. 0), and then delete it from your system.
Re: Identify PID for remote database handle--CLARIFICATION...
Reidy, Ron wrote: No, I do not know you are a DBA; maybe YOU cannot describe the problem well enough. -Original Message- From: Drozdowski, Catharine [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 23, 2006 10:11 AM To: Reidy, Ron; dbi-users@perl.org Subject: RE: Identify PID for remote database handle--CLARIFICATION... You know I AM a DBA and will withdraw the post as you guys seem to not be able to grasp the concept. Ok kids ne nice :) The question is (assuming I understand it) Is there a way to get or have DBI set so it can be gotten the PID of the $dbh process ont he DB server (local or remote) Correct?
Re: Identify PID for remote database handle--CLARIFICATION...
JupiterHost.Net [EMAIL PROTECTED] wrote:
You know I AM a DBA and will withdraw the post as you guys seem to not
be able to grasp the concept.
Ok kids ne nice :)
The question is (assuming I understand it)
Is there a way to get or have DBI set so it can be gotten the PID of the
$dbh process ont he DB server (local or remote)
Depends on the DBD driver on the backend. eg; with postgres you do
it like this:
my $pid = $dbh-{pg_pid};
Cheers,
Tyler
RE: Identify PID for remote database handle--CLARIFICATION...
Yep, you got it... PS I did send Ron/Chris separate email to make nice -Original Message- From: JupiterHost.Net [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 23, 2006 10:12 AM To: dbi-users@perl.org Subject: Re: Identify PID for remote database handle--CLARIFICATION... Reidy, Ron wrote: No, I do not know you are a DBA; maybe YOU cannot describe the problem well enough. -Original Message- From: Drozdowski, Catharine [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 23, 2006 10:11 AM To: Reidy, Ron; dbi-users@perl.org Subject: RE: Identify PID for remote database handle--CLARIFICATION... You know I AM a DBA and will withdraw the post as you guys seem to not be able to grasp the concept. Ok kids ne nice :) The question is (assuming I understand it) Is there a way to get or have DBI set so it can be gotten the PID of the $dbh process ont he DB server (local or remote) Correct?
RE: Identify PID for remote database handle--CLARIFICATION...
Isn't that exactly what Chris Sarnowski's suggested SQL does? If you want the OS PID on the database server process (running the DML under Oracle) that is serving your client (Perl/DBI), select vp.spid from v$process vp, v$session vs where vs.sid = (select sid from v$mystat where rownum = 1) and vp.addr = vs.paddr If you want to see all server processes for all clients (not what you asked for, but good for testing): select vp.spid from v$process vp, v$session vs where vp.addr = vs.paddr Tom --- Drozdowski, Catharine [EMAIL PROTECTED] wrote: Yep, you got it... PS I did send Ron/Chris separate email to make nice -Original Message- From: JupiterHost.Net [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 23, 2006 10:12 AM To: dbi-users@perl.org Subject: Re: Identify PID for remote database handle--CLARIFICATION... Reidy, Ron wrote: No, I do not know you are a DBA; maybe YOU cannot describe the problem well enough. -Original Message- From: Drozdowski, Catharine [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 23, 2006 10:11 AM To: Reidy, Ron; dbi-users@perl.org Subject: RE: Identify PID for remote database handle--CLARIFICATION... You know I AM a DBA and will withdraw the post as you guys seem to not be able to grasp the concept. Ok kids ne nice :) The question is (assuming I understand it) Is there a way to get or have DBI set so it can be gotten the PID of the $dbh process ont he DB server (local or remote) Correct? __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
Re: Identify PID for remote database handle--CLARIFICATION...
Too bad I missed this one. It's a bad mistake to assume _any_ process gets assigned a PID; something one would understand if they, understood IPC as in Interprocess Communication, which occurs at a lower OS level, where Descriptors - which are typically some type of int - are used to identify sibling processes with one another. There are many processes that run, that are never seen at the OS Admin level, at least not with/out a great deal of effort. I wouldn't expect a DBA w/out a formal education in computer science to understand that, unless they were a _good_ DBA. Ah, what the heck... I'll send this ;) Reidy, Ron wrote: No, I do not know you are a DBA; maybe YOU cannot describe the problem well enough. -Original Message- From: Drozdowski, Catharine [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 23, 2006 10:11 AM To: Reidy, Ron; dbi-users@perl.org Subject: RE: Identify PID for remote database handle--CLARIFICATION... You know I AM a DBA and will withdraw the post as you guys seem to not be able to grasp the concept. -Original Message- From: Reidy, Ron [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 23, 2006 8:51 AM To: Drozdowski, Catharine; dbi-users@perl.org Subject: RE: Identify PID for remote database handle--CLARIFICATION... This is somewhat off topic as it has nothing to do with DBI nor Perl. However ... When a connection request is made to an Oracle database instance, the TNS listener receives this request. If the listener is configured to create dedicated sessions, a new process is created, connected to the database instance. This new process opens a socket (tcp) for communicating with the client process. The listener then hands this socket address back to the client program and returns to listening for connection requests. Now, to identify the PID of this new process, someone else has already described the mechanism for getting that information from the DB. If you want DB resource usage, you will need to look at the performance views V$PROCESS, V$SESSION (wait events), and the ASH and AWR views in 10gR2. If you need more information on these views, see the Oracle docs and/or talk with your DBA. -- Ron Reidy Lead DBA Array BioPharma, Inc. -Original Message- From: Drozdowski, Catharine [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 23, 2006 9:32 AM To: dbi-users@perl.org Subject: RE: Identify PID for remote database handle--CLARIFICATION... To the DBI/DBD list: Let me rephrase this question a bit. I have a perl program running on server A which makes a remote connection to a database running on server B using the DBI/DBD construct of a database handle/statement handle. On server A, the perl program has a process ID, identified by $$ or $PID. On server B where the actual DDL inside the statement handle is running, resources are being consumed by the database to construct the query return set. That resource usage is being accounted for somehow at the OS level on server B. My assumption is that they are assigned a PID by the OS It is this process id which I would like to capture. I hope this clarifies what I am looking for ... Thanks, catharine -Original Message- From: Chris Sarnowski [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 23, 2006 7:04 AM To: dbi-users@perl.org Cc: Drozdowski, Catharine Subject: Re: Identify PID for remote database handle I don't know of any way to do this using DBI or DBD::Oracle. You might get better answers on an Oracle DBA list (try http://www.freelists.org/list/oracle-l or http://www.lazydba.com ) This seems to work in Oracle 9.2, but I just hacked it together in a couple of minutes and it's not thoroughly tested (i.e. testcases = 1 with 100% success). Also, there are probably better ways to find your own SID. This of course assumes that the user has access to the V$ tables (which they probably shouldn't have). select vp.spid from v$process vp, v$session vs where vs.sid = (select sid from v$mystat where rownum = 1) and vp.addr = vs.paddr; I've been thinking about why you might want this and now I'm not sure it's the answer you want anyway. Running sqlplus inside of perl seems redundant for most purposes. And now that I think about it I'm sure DBI/DBD::Oracle can't help you here because it is not going to know anything about the sqlplus connection, just the DBI handle. So it really is off-topic for this list. -Chris On May 22, 2006, at 6:07 PM, Drozdowski, Catharine wrote: How can I find the server pid for a sqlplus session which is logged on remotely inside a perl program... I can find the local PID using $$ or $PID, but how can I find the pid for the statement/database handle which is actually logged onto the database doing the work... Env: Oracle, Solaris Catharine Drozdowski Mentor Graphics Corporation IT Systems Services 1 503 685 7906 This electronic message transmission is a PRIVATE communication which contains information which may
Re: Identify PID for remote database handle--CLARIFICATION...
There's some sys DBMS packages that you can have the perl program call and update the MODULE, ACTION, etc columns to make it easier to identify your program if needed. I'm not a my work desk nor do I aim to memorize these things so I cannot be specific. Generally you see perl.exe though at least in my env. As thomas states, v$process and v$session have what you need. Thomas Hilbig wrote: Isn't that exactly what Chris Sarnowski's suggested SQL does? If you want the OS PID on the database server process (running the DML under Oracle) that is serving your client (Perl/DBI), select vp.spid from v$process vp, v$session vs where vs.sid = (select sid from v$mystat where rownum = 1) and vp.addr = vs.paddr If you want to see all server processes for all clients (not what you asked for, but good for testing): select vp.spid from v$process vp, v$session vs where vp.addr = vs.paddr Tom --- Drozdowski, Catharine [EMAIL PROTECTED] wrote: Yep, you got it... PS I did send Ron/Chris separate email to make nice -Original Message- From: JupiterHost.Net [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 23, 2006 10:12 AM To: dbi-users@perl.org Subject: Re: Identify PID for remote database handle--CLARIFICATION... Reidy, Ron wrote: No, I do not know you are a DBA; maybe YOU cannot describe the problem well enough. -Original Message- From: Drozdowski, Catharine [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 23, 2006 10:11 AM To: Reidy, Ron; dbi-users@perl.org Subject: RE: Identify PID for remote database handle--CLARIFICATION... You know I AM a DBA and will withdraw the post as you guys seem to not be able to grasp the concept. Ok kids ne nice :) The question is (assuming I understand it) Is there a way to get or have DBI set so it can be gotten the PID of the $dbh process ont he DB server (local or remote) Correct? __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com --- Text inserted by Platinum 2006: This message has NOT been classified as spam. If it is unsolicited mail (spam), click on the following link to reclassify it: http://127.0.0.1:6083/Panda?ID=pav_146SPAM=true ---
