question

Upvotes
paul.cockerham avatar image
1 ●0 ●1 ●1

ODPS - how to increase throughput?

odps8.2.0.L1.linux.rrg

Hi - we have an application team who are querying ways to increase throughput for lookups when RIC are translated to PE codes using ODPS.

Their current testing of sending 350 RIC codes that needed to be translated in batches of 100 RICs, took about 11 seconds to translate them all.

16:46:59.187 OdpsQuery.cpp:104 OdpsQuery:: CURL request took 1366ms for 9 rics 16:47:02.191 OdpsQuery.cpp:104 OdpsQuery:: CURL request took 3004ms for 100 rics 16:47:04.696 OdpsQuery.cpp:104 OdpsQuery:: CURL request took 2505ms for 100 rics 16:47:08.202 OdpsQuery.cpp:104 OdpsQuery:: CURL request took 3506ms for 100 rics 16:47:10.204 OdpsQuery.cpp:104 OdpsQuery:: CURL request took 2002ms for 39 rics

Is there something you could recommend to increase the throughput? Would larger batches be more efficient? Or running multiple queries in parallel?

open-dacs
icon clock
10 |1500

Up to 2 attachments (including images) can be used with a maximum of 5.0 MiB each and 10.0 MiB total.

1 Answer

Upvotes
zoya faberov avatar image
23k ●22 ●9 ●14

Hello @paul.cockerham,

ODPS is not designed as a highly performant server, rather it is intended as convenient DACS view component, saving the need for active OpenDACS API integration effort within the custom application.

Please refer to INSTALL AND DEVELOPERS GUIDE on MyRefinitiv, section Performance, for the recommended performance configuration setup description and example performance statistics collected at the time of the release on testbed configured per recommended setup.

The throughput stats are similar, for different calls, and we can observe the specific stats for itemToPE in sub-section Message Throughput for Each Message Type, I am going to assume you are on HTTP 1.1, as it is the recommended, see sub-section HTTP 1.1 Connections, so we are looking at HTTP 1.1 stats for itemToPE for a ballpark expectation on the performance.

In terms of integration design, I would look into obtaining the map once and caching this information, rather then requesting on every call where it is required. This information is not expected to change often, so a periodic check should done to be safe, and sufficient for keeping the maps up to date.

Hope that this information is of help

icon clock
10 |1500

Up to 2 attachments (including images) can be used with a maximum of 5.0 MiB each and 10.0 MiB total.

paul.cockerham avatar image paul.cockerham

Thanks for your response but the development team have asked if you could still possibly provide guidance on how to best use the ODPS batch lookups?

If they have say 500 RICs to translate, what would be the ideal size of an individual request in terms of RIC count?

Can it help reduce the overall time if they perform multiple HTTP calls in parallel?

Click below to post an Idea Post Idea