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MeetanshiNew Participant

Got a Question?

How to Include Custom Column in Export To CSV in Magento 2

Magento 2 store owners might be familiar with the backend grids and how they can be exported to CSV files. The store admins are frequently required to export the data into CSV format for multiple purposes.There can be custom columns in the backend grid that the admin may also want to include in the exported CSV file. However, sometimes you may face problem to include the custom column in export to the CSV file in Magento 2, which may put the store admin in a troubling situation.Suppose you are a Magento 2 store owner selling food items and have added a custom product attribute for flavours, then you may face difficulties while exporting products grid along with the newly created product attribute.The solution to deal with such an issue is to tweak the source codes. You can learn the complete solution at https://meetanshi.com/blog/include-custom-column-in-export-to-csv-in-magento-2/

23 days ago

rajeshgangamNew Participant

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Unable to do live-record for a process

Hi, Am not able to record a process, not sure why it is not able to do so. can you please help on how to debug it.[root@VM-228 undo-6.6.0-dev.850b22880926]# ./live-record -p 11027live-record: Termination recording will be written to /opt/cfg/undo-6.6.0-dev.850b22880926/11027-2022-05-14T16-57-41.771.undo if requiredlive-record: Maximum event log size is 1GError: Cannot enable recordinglive-record: No child processes (-10:ECHILD) Thank you,Rajesh

2 months ago

Gareth ReesNew Participant

War Stories

The missing XSAVE

1. IntroductionThis is a write-up of a bug in Undo’s software replay technology that I diagnosed and fixed. I’m writing it up while the details are still fairly clear in my memory and I have access to the relevant debugging transcripts. Hopefully this will be an entertaining story, and show off many useful features of UDB.2. The bugThis bug was provoked when I pushed a small commit removing some long-dead code. This caused a backwards-compatibility test to fail in the overnight run, and since my commit was “responsible” for the failure (as determined by git bisect), it fell to me to fix the problem. This put me in a bad mood, because I was certain that there was nothing wrong with my commit, and that what was going on was that removing the dead code had perturbed the code layout causing some previously latent bug to spring into life. There’s little that’s more annoying than to be blamed for something that isn’t your fault. But afterwards I was glad I worked on it.What was the failure?

6 months ago

dschwarzCommunity Manager

General information

Installing the KeyserverF.A.Q.

The KeyserverThe Keyserver component is a license-key server responsible for giving out UDB 'seats' from an enterprise-wide license. This will generally sit on a company-wide network, and will be contacted by UDB instances seeking to obtain a "seat" (needed in order to run UDB). The Keyserver has a fixed number of “seats”, one of which will be used for each UDB session that it authorises. Obtaining the KeyserverBefore installing the Keyserver, Undo needs to be provided with a specific MAC address, hostname and port number of the machine where the Keyserver will be installed. Undo will then generate a license that will tie the Keyserver to that particular machine.Once the license has been generated, you can download the Keyserver as part of the LiveRecorder release. It will be contained within the keyserver/ folder. Installing the KeyserverUndo provides Keyserver installation instructions for both systemd and SysV (init.d), in the keyserver/README file.

6 months ago

lmarshallNew Participant

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"Tip of the day" feature

Particularly for the benefit of new users, it might be useful to have a “Tip of the day” feature which gives suggestions like “use ugo end to get to the end of a recording, rather than continue”.I think it makes sense to restrict this to running once at UDB startup, or when run/attach/uload is used; to show suggestions in the middle of a session would be too obtrusive.

7 months ago

ahmali86New Participant

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Intellij Error (Liverecorder for java)

I am trying the live debugging guide for java , in intellij an unable to get to workam seeing the following error with my demo project, any help as to what’s going wrong ?18:05:32.962 [main] DEBUG io.undo.jdwp.UdbJVMDebugger - type database created18:05:33.012 [main] ERROR io.undo.jdwp.UdbJDWPBridge - startup errorjava.lang.Exception: Please make sure debug symbols are installed! at io.undo.jdwp.UdbJDWPBridge.<init>(UdbJDWPBridge.java:230) [undo-jdwp-java-1.0.jar:?] at io.undo.jdwp.UdbJDWPBridge.main(UdbJDWPBridge.java:121) [undo-jdwp-java-1.0.jar:?]18:05:33.016 [main] DEBUG io.undo.jdwp.UdbJDWPBridge - agent has been notified on port 4168318:05:33.016 [main] DEBUG io.undo.jdwp.UdbJDWPBridge - wait for JDWP thread to connect

7 months ago

tghetiuNew Participant

Include recording start/stop bbcount and fuzzing mode, in the headerNew

It would be useful if the recording start and ending bbcount would be included in the header (to be quickly read via recording-dump -r rather than having to load the recording - and potentially facing a long wait to do it - before being able to obtain this information).Additionally, it could be useful to know if a recording was generated using Thread Fuzzing.

7 months ago

vigneshtNew Participant

Option to set timeout on weak connections (idle sessions)Discussion ongoing

We would like an option for weak connections / idle sessions to be timed out. This would really help out with user / license management. Thank you.

7 months ago

vigneshtNew Participant

Option to cap on number of licenses per userDiscussion ongoing

We would like to propose a new feature which would give the option to limit the number of licenses that could be used by each individual user on the license server.

7 months ago

tyuponikNew Participant

VS Code - Time Travel Debug C/C++

udb is not licensed

I’m running Ubuntu in WSL2 and have just downloaded UndoDB trial. I’m trying to follow the VS Code tutorial (VS Code is started from WSL2), but I’m having trouble. When I launch the “(UDB) Build and launch active file”, the build completes successfully, but I get an error “udb is not licensed - udb path: ...”. If I run udb directly from WSL (not via VS Code), I have no issues. Note that I first ran UndoDB directly and accepted the license there, not via VS Code.What can I do to fix this?

7 months ago

rajeshgangamNew Participant

Got a Question?

Unable to do live-record for a process

2 months ago

ahmali86New Participant

Got a Question?

Intellij Error (Liverecorder for java)

7 months ago

tghetiuNew Participant

Got a Question?

How does a undolr_stop() or undolr_discard() failure affect the state of the debugged program?

If, while recording through the API, one of the undolr_stop() or undolr_discard() functions fails (e.g. returns -1), what does that imply for the debugged program?What measures should a programmer take when such failures are met?

1 year ago

gelNew Participant

How would you tackle...?

How would you debug a silent EINTR /without/ software failure replay?

I was asked to take a look at a failure of a test that I wrote many years ago. This failure was, as far as we could tell, new, but it didn’t look like a regression. The test was multi-threaded with asynchronous signals using setitimer() to fire SIGALRMs at it. It appeared to have completed successfully, but at the end it printed a “test succeeded” message which our test system was expecting to see, only it didn’t appear. Happily our test system had saved a recording of the debuggee. Turns out that the printf(“test succeeded”) had been interrupted by a SIGALRM and so returned -EINTR. Actually it was more complicated than that - the compiler had turned the printf() into a puts(), which returns zero if it fails. This took 10-20 mins of head scratching with the recording, a few minutes thinking I was looking at a libc bug, but it was pretty straightforward really. So my challenge is - how would you go about debugging that _without_ a recording?

1 year ago

etestaCommunity Manager

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`Ugo event` seemingly going to the wrong event

Recently while investigating an issue for a customer I noticed the following: (udb) ugo event prev name=='write'going to: ref=0x1fc054f4c170 in_code=0 time_bbcount=223466223298 time_extra=18446744073709551615 code=write size=80 result=70x00007f4fc89e0c0b in write () from /tmp/undodb.8444.1617966303.9400325.18ca8bac04951ecc/debuggee-1-bamqf2b_/symbol-files/lib64/libpthread.so.0OK(udb) ugo event prev name=='write'going to: ref=0x1fc054f4c0b8 in_code=0 time_bbcount=223466223040 time_extra=18446744073709551615 code=write size=80 result=6[Switching to Thread 12978.12978]0x00007f4fc3843f81 in epoll_wait () from /tmp/undodb.8444.1617966303.9400325.18ca8bac04951ecc/debuggee-1-bamqf2b_/symbol-files/lib64/libc.so.6WHAT?(udb) ugo event prev name=='write'going to: ref=0x1fc0540a8d00 in_code=0 time_bbcount=223403831487 time_extra=18446744073709551615 code=write size=80 result=8[Switching to Thread 12978.13072]0x00007f4fc38367ab in write () from /tmp/undodb.8444.1617966303.9400325.18ca8bac04951ecc/d

1 year ago

BruceBug Squasher

How would you tackle...?

Debugging the wetware component of the protocol stack

As an example of how the Slack integration looks, how would anybody go about unblocking the wetware pipe to allow thoughts and conversations to flow into the system?

1 year ago

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