Date
Attendees
John Gates, Fritz Mueller, Vaikunth Thukral, Andy Salnikov, Brian Van Klaveren, Unknown User (npease), Fabrice Jammes, Serge Monkewitz, Andy Hanushevsky, Kian-Tat Lim, Jacek Becla
Discussion items
JTM
- Entire DB team plans to be there Mon-Wed. Even Fabrice coming
- Jeff T. from Oxford coming too
docker
- running multi node integration test inside docker - query ran interactively works, the very same query ran non-interactive fails with http connection to webserv problem. Still puzzled
- finally can get core file inside dockers
- writing tech note about debugging inside docker
in2p3 cluster
- in2p3 will be upgrading the 1/2 of cluster to deal with kernel panic
mariadb
- problems with mariadb / mysql solved by switching to newest version of mysql proxy
- we are still depending on mysql client because mysql python depends on mysql, switching would impact the rest of the stack
- maybe ask SQUARE to test the stack with mariadb client?
- alternatively, when we switch to sqlalchemy that will get solved
- note that we will need mariadb for pluggable authentication everywhere anyway
shared scans
- still looking how to avoid scheduling shared scan for the same chunk on multiple replicas of that chunk
- ideas tossed around involve "relative ordering" to enforce sending all queries to "primary" copy
- Would like to send interactive queries to least loaded copy
- still thinking. Not urgent, this is just resource optimization
db/table mgmt
- document as comment in DM-2802
Planning S16 cycle
- output captured in JIRA and a spreadsheet. The spreadsheet will be published soon