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When does eRRO.exe launch and appear on Task Monitor?

  • 1.  When does eRRO.exe launch and appear on Task Monitor?

    Posted Wed July 31, 2024 09:55 PM
    Edited by dsakai Wed July 31, 2024 09:55 PM

    Hi,

    I followed these steps, turned on eRRO, and restarted Windows Server.

    Then, I accessed Verify panel from a Custom Navigtor Application and clicked Submit from 3 different browsers.

    But I don't see eRRO.exe on the Task Monitor as explained in the Support page.

    What steps must I proceed for eRRO.exe to launch and appear on the Task Monitor?

    I used Chrome, FireFox, and Edge to access Navigator Verify panel and clicked Submit.

    I was expecting to see 3 eRRO.exe processes.

    Enable eRRO in Datacap

    Microsoft Windows (64-bit)
    1. Go to HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Datacap\RRS
    2. In the right panel, right click "Use eRRO (REG_DWORD)"
    3. Click Modify. Change the "Value data" from 0 to 1.
    4. Click OK.

    Slowness on Datacap Web and Datacap Navigator while executing validation rules

    "On above image we can see how 2 sessions are running validations and how each of them has it's own eRRO.exe process."



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    dsakai
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  • 2.  RE: When does eRRO.exe launch and appear on Task Monitor?

    Posted Thu August 01, 2024 12:04 PM

    On my system, it cause by Dstudio.   eRRO process is in window task manager if dStudio is started.  Not cause by IIS hosting wTM using datacap navigator.



    ------------------------------
    Duke Lam
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  • 3.  RE: When does eRRO.exe launch and appear on Task Monitor?

    Posted Mon August 05, 2024 08:34 AM

    Thank you Duke

    > On my system, it cause by Dstudio. 

    I confirmed this.

    >Not cause by IIS hosting wTM using datacap navigator.

    According to the Support site, eRRO is a supplementary function for TMWeb and Datacap Navigator.

    Do you know how eRRO can be launched for Datacap Navigator?

    I couldn't understand why eRRO launched for DStudio. I thought eRRO was launched for each user on TmWeb or Datacap Navigator as stated in the Support page.

    I will appreciate any clues.

    "Enabling the eRRO registry for Datacap thin clients will allow a new separated process to execute the validation rules called eRRo.exe, this setting will create a separated process for each user running the verification view on TMWeb, and for Datacap Navigator will be generated while clicking submit on the verify.js page"

    https://www.ibm.com/support/pages/slowness-datacap-web-and-datacap-navigator-while-executing-validation-rules



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    dsakai
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  • 4.  RE: When does eRRO.exe launch and appear on Task Monitor?

    Posted Mon August 05, 2024 11:18 AM

    Hello Dsakai, 

    I know it helps with speed running verify using datacap navigator.  I think it has to do with running it out of process or some sort.   If you are not using datacap navigator doing verify task, you don't need to enable this.



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    Duke Lam
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  • 5.  RE: When does eRRO.exe launch and appear on Task Monitor?

    Posted Mon August 05, 2024 10:04 PM

    Thank you Duke. 

    Are you saying eRRO configuration may not work with a Custom Verification Application created with Node.js (JavaScript )?

    Is it only for TMWeb and ICN Navigator verification?

    The operators keep getting timeout error after clicking Verify button and it seems eRRO config was the solution.

    It it doesn't work with Node.js verification app, we will need to look for other solution.

    >If you are not using datacap navigator doing verify task, you don't need to enable this.

    Have you ever tuned IIS to solve timeout issues reported by operators?

    Like increasing the maximum number of IIS Worker process?



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    dsakai
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  • 6.  RE: When does eRRO.exe launch and appear on Task Monitor?

    Posted Mon August 05, 2024 04:15 PM

    Hi, Sakai-san Duke-san

    Thanks to your advice, I was able to see eRRo.exe on the Task Monitor.
    However, why is eRRo.exe made when Datacap Studio is started?

    In IBM support site written about "Slowness on Datacap Web and Datacap Navigator while executing validation rules",there is the below message.
    https://www.ibm.com/support/pages/slowness-datacap-web-and-datacap-navigator-while-executing-validation-rules
     >Enabling the eRRO registry for Datacap thin clients will allow a new separated process to execute the validation rules called eRRo.exe, this setting will create a separated process for each user running the verification view on TMWeb, and for Datacap Navigator will be generated while clicking submit on the verify.js page

    It doesn't make sense eRRo.exe is made only when Datacap Studio(the irrelevant tool to tmWeb) is started.



    ------------------------------
    AIKO YANAGIYAMA
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  • 7.  RE: When does eRRO.exe launch and appear on Task Monitor?

    Posted Mon August 05, 2024 04:16 PM

    Hi, Duke-san. ( cc Sakai-san)
    Thanks to your advice, I was able to see eRRo.exe in window task manager.
    but it don't make sense that eRRo process is in window task manager only when Datacap Studio is started.
    Datacap Studio is the tools for Datacap application development and testing and not related to RRS nor wTM.

    It is hard to persuade my client.




    ------------------------------
    AIKO YANAGIYAMA
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  • 8.  RE: When does eRRO.exe launch and appear on Task Monitor?

    Posted Tue August 06, 2024 02:03 PM

    eRRO processor are spawned when rules are executed.  It run out of processor ie ... outside of wtm processor which help with performance.

    When you use datacap navigator or tmweb all the rule when it's executed are run in wtm processor or tmweb processor.   To help with performance, if you enable eRRO it will spawn new eRRO processing to run outside of wTM processor or tmweb.  You will see more than one eRRO processor if you have to execute different rule.