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General information



  • no news related to CentOS8

Preview repository

  • released on 2021-06-10
  • released on 2021-08-11
    • Preview 2.35.0 (CentOS 7): APEL SSM 3.2.1, DPM/DMLite 1.15.0 and 1.15.1, frontier-squid 4.15.2, xrootd 5.3.0




Feedback from DMSU

New Known Error Database (KEDB)

The KEDB has been moved to Jira+Confluence:

  • problems are tracked with Jira tickets to better follow-up their evoulution
  • problems can be registered by DMSU staff and EGI Operations team

Monthly Availability/Reliability

  • sites suspended:


IPv6 readiness plans

APEL migration from ActiveMQ to ARGO Message Service (AMS)

  • ActiveMQ dismissed on July 8th: for security reasons it is not possible maintain it any longer.
  • Migration insructions (HTCondorCE, Storage, and Cloud accounting):
  • ARC 6.12.0 released, instructions:
  • Recommended versions:
    • Apel Clien: 1.9.0
    • APEL SSM: 3.2.1
  • Cloud accounting campaign:
    • list of tickets
    • 2 tickets (out of 21) not solved yet
      • UA-BITP 150857: old records associated to "None" VO (due to a configuration issue) needs to be removed from the repository
      • CYFRONET-CLOUD 150845:
  • HTCondorCE and Storage accounting campaign:
  • ARC-CE and storage accounting campaign:
    • list of tickets
    • 11 tickets (out of 112) not solved yet
      • Australia-ATLAS152428 and Australia-T2 152429: they stilll have ARC-CE 5.4; moving to a Cloudscheduler based compute system and will be removing the ARC-CE's in the near future
      • CA-SFU-T2 152433: CEs updated, check the accounting publication in the coming days... some errors with the benchmark which seem harmful. Duplicated records for the previous months, it was suggested to set `apel_messages = summaries` in the arc conf file.
      • IN2P3-IPNL 152460: CE not yet in production
      • JP-KEK-CRC-02 152471: by the end of September...
      • RU-SPbSU 152491: some discrepancy between local database and central repository, involved ARC developers...
      • Taiwan-LCG2 152497: setting up the ARC6 server...
      • TASK 152498:
      • TW-FTT 152503:
      • UA-MHI 152509: downtime until 22nd Sept...
      • UKI-NORTHGRID-MAN-HEP 152521: HTC data in May and June seems higher than expected... there are duplicated records that need to deleted in the central repository...

Prerequisites for using AMS

  • A valid host certificate from an IGTF Accredited CA.
  • A GOCDB 'Site' entry flagged as 'Production'.
  • A GOCDB 'Service' entry of the correct service type flagged as 'Production'. The following service types are used:
    • For Grid accounting use 'gLite-APEL'.
    • For Cloud accounting use ''.
    • For Storage accounting use ''.
  • The 'Host DN' listed in the GOCDB 'Service' entry must exactly match the certificate DN of the host used for accounting. Make sure there are no leading or trailing spaces in the 'Host DN' field.

Monitoring of the accounting data

To ensure the monitoring of the publication of the accounting data, one CE per site needs to be registered as "APEL" service endpoint.


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