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On a medium-sized cluster (say 4 servers, 400 sharded tables), the web UI's requests for the dashboard and server list page at least cause some significant CPU usage on the servers, and are slow.
We …
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Queries are slow with GPT 4 at the moment
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Lots of people like , but we're having issues with the harvester.
## Issue
explore.cioos.ca harvester is having a few issues and fails on occasion to query some erddap servers and/or datasets.
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The multiplexer fans out one streaming store reader to different streaming queries.
This has efficiency of disk read / TFF deserialization, memory allocation etc.
But we may introduce new problems…
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**Describe the bug**
I noticed this while investigating https://github.com/apache/datafusion/issues/7845#issuecomment-2370455772.
The suggestion from @jayzhan211 and @alamb was that `datafusion.…
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The blog currently has two categories, `Announcements` and `Posts`, it was proposed to includes a third category for blog posts regarding software challenges and other interesting software related pos…
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A particular interesting feature of ZFDebug is being able to view what queries ZF generated and see the individual timings. This is helpful to troubleshoot issues with wrong or slow queries.
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When a new hub deploys, the getting all identifiers queries takes time, and slows down the browser.
This script will trigger OS cache those query results and make those queries fast.
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Figure out how to monitor queries to the DB and log them in some nifty web service so that we can discover slow queries and figure out if they are missing indexes. I am sure there are such queries but…
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## Enhancement
When doing some tests, we met a case where the slow query items in the slow log are not ordered by time. This is in contradiction with the assumptions in the slow_query system table …