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\uD83D\uDC65 Participants
Lancaster: Gerard, Steven
Glasgow: Sam
\uD83E\uDD45 Goals
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Item | Presenter | Notes | ||||||||||||||||
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5.4.3 releases in Centos 7 / EL8;
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Identified the issue, client readv calls exceeded 1024. Thomas, Jyothish (STFC,RAL,SC) | |||||||||||||||||
Outstanding items for 5.4.X XrdCeph version | Master:
BufferedIO: PR to merge current Master needed;
Code prepared; PR needed | |||||||||||||||||
| Add xrd.report monitoring to all xrootd instances; collate and ingest into ESInfluxDB. | |||||||||||||||||
| ceph-dev-gw2: aim to pass passing current compliance tests (XrootD 5.5. will be needed for all components). | |||||||||||||||||
Deletions updates | 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 uk sites only supporting gridFTP? (to understand more details).
Site reports
Oxford Xcache:
- Xrootd service failed to start due to failed DNS name resolution of the monitoring host specified in xrootd.monitoring directive.
Lancaster:
xrdcp TPC working back again.
✅ Action items
- Reminder from Sam to update GGUS tickets