Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

Item

Presenter

Notes

5.4.3 releases in Centos 7 / EL8;

  • Problems observed: (pgRead / pgWrites)

Thomas, Jyothish (STFC,RAL,SC)

Jira Legacy
serverSystem JIRA
serverId929eceee-34b0-3928-beeb-a1a37de31a8b
keyXRD-14
,
Jira Legacy
serverSystem JIRA
serverId929eceee-34b0-3928-beeb-a1a37de31a8b
keyXRD-10

Identified the issue, client readv calls exceeded 1024. Thomas, Jyothish (STFC,RAL,SC)
prepared a server fix. Michal (XrootD dev) prepared a client side fix.

Outstanding items for 5.4.X XrdCeph version

Master:

Jira Legacy
serverSystem JIRA
serverId929eceee-34b0-3928-beeb-a1a37de31a8b
keyXRD-22
included;

BufferedIO: PR to merge current Master needed;

Jira Legacy
serverSystem JIRA
serverId929eceee-34b0-3928-beeb-a1a37de31a8b
keyXRD-9

Code prepared; PR needed

Jira Legacy
serverSystem JIRA
serverId929eceee-34b0-3928-beeb-a1a37de31a8b
keyXRD-24

Add xrd.report monitoring to all xrootd instances; collate and ingest into InfluxDB.
Initial version: https://github.com/snafus/xrdreport

Jira Legacy
serverSystem JIRA
serverId929eceee-34b0-3928-beeb-a1a37de31a8b
keyXRD-26

ceph-dev-gw2: passing current compliance tests (XrootD 5.5. will be needed for all components).
Demonstrate that Echo can satisfy proposed ATLAS strategy with mixed x509 / tokens workload.

Deletions updates

Ian Johnson

Expanded deletion time measurement script to automate more of the recording. Running measurements on nGB-size files (up to 8GB). Deletions of such files take < 2s for me. (Problems uploading the test data though - for 8GB file, upload takes ~ 40 minutes or errors such as “(Neon): Could not send request body: Connection reset by peer” after 20-30 minutes…)

Brief Summary from discussion with LHCb / Chris

  • gfal2 doesn’t support timeouts for removal ( to check and send any instructions to Chris? )
    Write conflicts with different protocols: Dirac will immediately try another protocol.
    To switch to davs once new gateways are up.

  • Rob C’s code is

...

  • the measure of performance for VR. User jobs have various counter-measures in place.

gridFTP for transfers for RAL and other TPC transfers in the UK. (some Some uk sites only supporting gridFTP? (to understand more details).

...