Summary

  • Update on the Indy Ubuntu 20.04 Upgrade
  • Investigating the "Mixed Node" issue
  • Indy Quarterly Report
  • Q&A

Recording of Call: 20220802 Indy Contributors Call Recording.mp4

Chat text:


Hyperledger is committed to creating a safe and welcoming

community for all. For more information

please visit the Hyperledger Code of Conduct.

Welcome and Introductions

Attendees

Stephen Curran (Cloud Compass Computing Inc.) <swcurran@cloudcompass.ca>

Philipp Schlarb (esatus AG) <p.schlarb@esatus.com>

Wade Barnes(Neoteric Technologies Inc.) <wade@neoterictech.ca>

Lynn Bendixsen(Indicio) <lynn@indicio.tech>

Christian Bormann (Robert Bosch GmbH) <christiancarl.bormann@de.bosch.com>


Related Calls and Announcements

Release Status and Work Updates

Meeting Topics 

  • Progress on completing the Ubuntu upgrade.
    • Hyperledger RCs for Node and Plenum are available
    • Progress made with the Sovrin build – getting the tests to run (had been failing)
    • Working now on publishing artifacts
  • The "Mixed Node" issue – latest updates.
    • Local testing looks good – mixed network, upgrades
    • Testing on IDUnion Test Net - not so good
      • Adding a 20.04 node seems to start fine and complete catch-up, but does not join the consensus
      • Can go back to 16.04 and everything is fine, so no damage to the network
        • Problem may be specific to the network – looking for another network instance to check for this
      • Seems to be the issue seen previously – on the same network
      • Working at trying to reproduce the issue
      • In the process – Christian Bormannhas created a indy-node load generator that writes many DIDs and Schema objects
        • Request from Stephen Curran– add some reads to the mix, ideally with a way to define the ratio of reads to writes to simulate a range of issuers (write-heavy) and verifiers (read-heavy)

Upgrade Notes

  • Upgrading Indy to Ubuntu 20.04 Presentation 
    • Summary of the work done ^^
  • Update on CI/CD Update and Ubuntu Upgrade 
    • Indy Shared GHA Repo
    • Indy-Plenum: 
    • Indy-Node:
    • indy-test-automation:
    • indy-node-container:
      • Call time changed – 17:00 CET / 8:00 Pacific on Thursdays.
    • Indy-SDK build progress
    • Issue: Mixed OS versions of Indy Node have issues:
      • Issue: - running mixed nodes 16.04 and 20.04 a consensus problem occurs "in a while" (sometimes immediately, sometimes a few days has been seen)
        • 2022.06.21
          • Two efforts trying to replicate the problem Christian Bormann (rust script to generate load) and Gavin Bendixsen (PR to indy_node_container), working on adding a node
          • At this point, the issue has not been replicated.
          • There is an indy node load generator - https://github.com/hyperledger/indy-node/tree/master/scripts/performance
          • Another plan of attack: Use old artifact to try to recreate, try again with RC and see if that replicates the issue.
          • Note from Lynn: He has seen and documented consensus issues in the past – maybe this has nothing to do with 20.04.
            • For example: 2 nodes went down seemingly together, restarted them and issue resolved.
        • 2022.06.07
          • Indicio team is working on a docker environment to replicate this, they are expecting to have something running in a few days.
          • docker-compose, 4 nodes (3 16.04 and 1 20.04), running for a week, but not able to replicate the issue. 
          • Lynn to share how to do this publicly so that others could contribute.
            • Put a folder into the indy-node-container repo about how to do it.
          • Plan is to use indy-vdr to generate DIDs and publish them to the ledger.
    • Related work - Sovrin token-plugin repo being reworked to match indy-node/plenum.

Future Calls

  • GDPR and the right to be forgotten – mitigations and approaches.
  • Dealing with Indy Node DoS attacks.
  • Issues that could impact indy-node on 20.04
    • indy-sdk: needs an upgrade to OpenSSL 1.1 to properly support Ubuntu 18.04/20.04.  For indy-node, just using indy-sdk as is.
    • Multiple libsodium versions could impact consensus – intermittent issue on a mixed network.
  • Plans for a new Indy-SDK release?
  • Status of Indy-SDK
    • Statement on the future of the Indy SDK: PR 2329
    • Plans for future of Indy CLI (move to Indy VDR?)
    • Indy SDK in test for Indy Node (move to Indy VDR?)
    • Status of GitHub Actions for the Indy-SDK
  • Indy bugs
    • Using GitHub tags "Good First Issue" and "Help Wanted" 
    • Node 1490: problems with large catch-up
    • Plenum 1506: view change message consensus calculation error

Action items