Druid refresh metadata performance improvements #3527
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Contributor
Mogball
commented
Sep 25, 2017
Mogball
commented
- Requests to Druid for datasource metadata are now issued in parallel
- Some SQLA tweaks here and there
- Added an option to scan Druid only for new tables, instead of refreshing everything
xrmx
reviewed
Sep 26, 2017
| datasource.merge_flag = merge_flag | ||
| session.flush() | ||
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| # Prepare multithreaded executation |
Contributor
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nits: these are processes not threads. Q: Do you think this can be offloaded to celery instead of multiprocessing?
Member
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Not a bad idea, though for now setting up celery isn't a hard requirement which helps people onboard without having to setup a MQ and workers...
timifasubaa
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to timifasubaa/incubator-superset
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Oct 3, 2017
* parallelized refresh druid metadata * fixed code style errors * fixed code for python3 * added option to only scan for new druid datasources * Increased code coverage
michellethomas
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that referenced
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May 24, 2018
* parallelized refresh druid metadata * fixed code style errors * fixed code for python3 * added option to only scan for new druid datasources * Increased code coverage
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