Hyperledger Fabric and Monitoring

Hyperledger is an open source collaborative effort created to advance cross-industry blockchain technologies. It is a global collaboration, hosted by The Linux Foundation, including leaders in finance, banking, Internet of Things, supply chains, manufacturing and Technology.

Hyperledger Meetup groups have an informal relationship with Hyperledger, and make up a key part of the Hyperledger ecosystem. Participation in a Hyperledger Meetup group is open to anyone–employees of a Hyperledger member company, Hyperledger contributors and developers, and people just passionate about blockchain technology.

Hyperledger Fabric and Monitoring

A technical meetup that will look at the tools for monitoring a production grade Hyperledger Fabric farm, including but not limited to:

– Hyperledger Explorer

– Hyperledger Fabric operation service

– Fabric and Prometheus integration

– Fabric and Grafana metrics



Information & Registration

DATE & TIME: 26th August 2021 / 17:00

VENUE: Online


Book Your Ticket or Find Out More About this Event

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Citrix App Layering | Adding version to OS Layer failing with error “Failed to duplicate layer. Please ensure that Windows was shut down properly.”

Adding version to OS Layer failing with error “Failed to duplicate layer. Please ensure that Windows was shut down properly”.

Screenshot of the error:

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On the ELM logs, we would see the below errors:

2021-07-14 09:20:34,824 INFO DefaultPool2 CopyPartitionByNtfsCloneJobStep: Cloning NTFS from block device /dev/nbd946p1 to /dev/nbd947p1

2021-07-14 09:20:34,875 ERROR DefaultPool2 CopyPartitionByNtfsCloneJobStep: NtfsClone failure (exitCode 1), repository reports 2760335364096 bytes remaining out of 3297175932928 bytes total

2021-07-14 09:20:34,880 ERROR DefaultPool2 CopyPartitionByNtfsCloneJobStep: NtfsClone failure: ERROR: Volume ‘/dev/nbd946p1’ is scheduled for a check or it was shutdown uncleanly. Please boot Windows or use the –force option to progress.

2021-07-14 09:20:34,880 ERROR DefaultPool2 JobStepEnumerator: Job step failed: MessageId=FailedNtfsClone, DefaultTitle=, CategoryData={[ExternalToolFailure { Call = “/usr/sbin/ntfsclone”, Args = “-O /dev/nbd947p1 /dev/nbd946p1”, Output = “”, Error = “ntfsclone v2018.3.1AR.1 (libntfs-3g)”, ErrorCode = 1 }]}

2021-07-14 09:20:34,880 INFO DefaultPool2 JobInterceptor: FinalizeLayerJob for JobId ‘768d6e’ has failed


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Cannot ‘Allow’ Citrix system file extensions when installing CF for Mac

Grab a copy of the database

  • The path is: /var/db/SystemPolicyConfiguration/ . See screenshot below and the required files:
  • image.png
  • Check if the kernel extension is allowed as shown below:
  • If it is allowed, then perform the steps highlighted below.

To fix the “Drive Unavailable” error, perform the following steps:

  1. Startup the Mac in recovery mode .
  2. Click the Utilities menu and select Terminal.
  3. Enter the following command:
    • /usr/sbin/spctl kext-consent add TEAMID
  4. Press Enter
    • Example: For Citrix the command would be: /usr/sbin/spctl kext-consent add S272Y5R93J
  5. Close the Terminal app and restart

If issue persists, Trigger the prompt by loading the kernel extension manually

sudo kextutil -t /Library/Filesystems/ctxfuse.fs/Contents/Extensions/10.12/ctxfuse.kext/

Note: Older builds (20.9 or less) can use sudo kextutil -t /Library/Filesystems/ctxfuse.fs/Contents/Extensions/10.11/ctxfuse.kext/

After running this command, open the system preferences in the security pane and see if you can approve the prompt.

While running the above command, if you encounter the Unable to stage kext” error then perform the action items highlighted below:


  1. As suggested here, run the below command:
    • chflags restricted /Volumes/Macintosh HD/private/var/db/KernelExtensionManagement
  2. People who have ran into the staging error have also reported upgrading to MacOS 10.15 Catalina also fixes the issue.


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How to Enable and Collect Advanced Logs for Receiver for iOS

New Logging for 5.9.1 and Later:

Enable Access to Log Files. Now with Receiver for iOS 5.9.1 it extends the Advanced Logging feature to gather diagnostic data for authentication, store add, and connection issues.

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Log options: Log Levels

Log Level Logs hold…
Level 1 Critical Critical notifications
Level 2 Errors Error notifications
Level 3 Warning Warning notifications
Level 4 Informational Receiver information notifications
Level 5 Detailed Information similar to verbose logs
Level 6 Debug All information sent by Receiver

To customize Logging settings:

  1. Click the Settings icon, then go to Support > Log Options.

  2. Choose one of the Log Detail options, for example 6 Debug.

    Note: Set the log level to 6 Debug for troubleshooting Receiver for iOS issues.

  3. Go back to Log Options.

  4. Click No to any warnings.

  5. From Log Destination Options, choose File, Console, or File and console.

  6. Go back to Log Options and set the slider for the Maximum number of log files and Maximum size of a log file.

  7. Click No to any warnings.

There are two ways to collect and send the Advanced Logs from the device:

Using Send Feedback to collect and send Advanced Logs

  1. Go to Settings > Support and select Request Help from Support.

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  2. Send the email with compressed Logs.zip (Advanced Logs) to the Technical Support case owner for further investigation.

Sync to iTunes to collect Advanced Logs

  1. Attach and Sync the iPad/iPhone to your authorized Mac or PC with iTunes.

  2. Within the Apps tab of iTunes, ensure that the Receiver is selected to sync. If it is not, select and re-sync.

  3. Scroll down in the Apps tab of iTunes to File Sharing.

  4. Select Receiver under Apps and the CitrixLogs folder on the right pane, under Receiver Documents.

  5. Click Save to… and save the entire Logs directory to your local computer.

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    Within the Logs folder are a series of logs. Compress and send the logs into Citrix Technical Support along with the steps preformed during the reproduction.


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Error: “Your User Profile was Not Loaded Correctly” in XenApp

Caution! Refer to the Disclaimer at the end of this article before using Registry Editor.

Complete the following steps to resolve the issue:

  1. Rename or delete the user’s folder in <SystemDrive>Users.

  2. Delete the Security Identifier (SID) that corresponds with the user’s account in the following registry key:

    HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionProfileList.

To locate the SID that corresponds to the user’s account, click each of the subkeys in the ProfileList, and observe the ProfileImagePath string value, as shown in the following screen shot:

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Also make sure that Citrix Profile management service is Running


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