Linux Background Task

[Chris Combs]

Can Serenji be used to debug a headless task such as an RPC or standalone task in Linux?

[Chris Combs]

The reason I asked is it reads and writes TCP/IP sockets .....

[George James]

Chris

You don't mention whether you are using Cache or GT.M.

If you are using Cache you can attach to a running process.  There are details in the Serenji Help document in the section Debugging / Attaching to a Process.

Regards

George

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From: "Chris Combs" <chris...@sellingrtp.com>
To: "George James Software" <george-james-s...@googlegroups.com>
Sent: Wednesday, 12 July, 2017 15:50:13
Subject: [GeorgeJamesSoftware] Linux Background Task

Can Serenji be used to debug a headless task such as an RPC or standalone task in Linux?

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[Chris Combs]

GTM

On Wednesday, July 12, 2017 at 11:55:33 AM UTC-4, George James wrote:

Chris

You don't mention whether you are using Cache or GT.M.

If you are using Cache you can attach to a running process.  There are details in the Serenji Help document in the section Debugging / Attaching to a Process.

Regards

George

---

From: "Chris Combs" <chris...@sellingrtp.com>
To: "George James Software" <george-james-s...@googlegroups.com>
Sent: Wednesday, 12 July, 2017 15:50:13
Subject: [GeorgeJamesSoftware] Linux Background Task

Can Serenji be used to debug a headless task such as an RPC or standalone task in Linux?

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You received this message because you are subscribed to the Google Groups "George James Software" group.

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[Chris Combs]

I am in the process of prchasing for that purpose and wanted to make sure I was buying a solution I can use.  My task will run on port 8xxx (really any port I choose) .... but reading and writing sockets in GTM means you are redirecting IO ... so wanted to make sure Serenji can give me a window into this task which I currently don't have for debugging.

On Wednesday, July 12, 2017 at 11:55:33 AM UTC-4, George James wrote:

Chris

You don't mention whether you are using Cache or GT.M.

If you are using Cache you can attach to a running process.  There are details in the Serenji Help document in the section Debugging / Attaching to a Process.

Regards

George

---

From: "Chris Combs" <chris...@sellingrtp.com>
To: "George James Software" <george-james-s...@googlegroups.com>
Sent: Wednesday, 12 July, 2017 15:50:13
Subject: [GeorgeJamesSoftware] Linux Background Task

Can Serenji be used to debug a headless task such as an RPC or standalone task in Linux?

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You received this message because you are subscribed to the Google Groups "George James Software" group.

To unsubscribe from this group and stop receiving emails from it, send an email to george-james-software-public+unsub...@googlegroups.com.

[rms]

If you cannot use Serenji to attach to a live process in GTM, is it because of something fundamentally different in the way that Cache and GTM do things?  In other words, with a reasonable amount of effort, can it also be done in GTM?

[George James]

Chris

You can attach to a running GT.M process by using the gtm_zinterrupt environment variable to invoke Serenji.

Ensure that the process that you want to be able to attach to has gtm_zinterrupt set as follows:

export gtm_zinterrupt='IF $$ENABLE^%SerenjD("nn.nn.nn.nn",,,"-0")'

or with your m code:

set $zinterrupt="IF $$ENABLE^%SerenjD(""nn.nn.nn.nn"",,,""-0"")'

where nn.nn.nn.nn is the IP address of the machine where you have the Serenji client installed.  Make sure you have the Serenji Sentry running in the taskbar notification area of your desktop as this listens for the connection from your process.

Then when you want to attach to the process issue the command:

mupip intrpt <pid>

where <pid> is the process id of the process you want to attach to.

This will cause your process to break wherever it happens to be and connect to the Serenji client.  From there you can examine your process and step through the code.

You can call $$ENABLE^%SerenjD() directly from any process if you want to use some other signalling mechanism to trigger debugging rather than using gtm_zinterrupt. Consult the source code in file _SerenjD.m for more documentation about the arguments to $$ENABLE.

Regards

George

George James Software

PO Box 701, Weybridge, KT13 3GZ, UK

0793 032 0241 / 01932-252568

I'm running 60 miles on July 15th in aid of Woking and Same Beare Hospices.  Please sponsor me: https://www.justgiving.com/fundraising/georgejames2017

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From: "Chris Combs" <chris...@sellingrtp.com>
To: "george-james-software-public" <george-james-s...@googlegroups.com>
Sent: Wednesday, 12 July, 2017 17:05:58
Subject: Re: [GeorgeJamesSoftware] Linux Background Task

I am in the process of prchasing for that purpose and wanted to make sure I was buying a solution I can use.  My task will run on port 8xxx (really any port I choose) .... but reading and writing sockets in GTM means you are redirecting IO ... so wanted to make sure Serenji can give me a window into this task which I currently don't have for debugging.

On Wednesday, July 12, 2017 at 11:55:33 AM UTC-4, George James wrote:

Chris

You don't mention whether you are using Cache or GT.M.

If you are using Cache you can attach to a running process.  There are details in the Serenji Help document in the section Debugging / Attaching to a Process.

Regards

George

---

From: "Chris Combs" <chris...@sellingrtp.com>
To: "George James Software" <george-james-s...@googlegroups.com>
Sent: Wednesday, 12 July, 2017 15:50:13
Subject: [GeorgeJamesSoftware] Linux Background Task

Can Serenji be used to debug a headless task such as an RPC or standalone task in Linux?

--
You received this message because you are subscribed to the Google Groups "George James Software" group.

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[Sam Habiel]

George,

I didn't know this! That's wonderful.

--Sam

[rms]

Great information.  Thank you so much.