Comments (2)
PengWang0316
commented on July 28, 2024
For the performance degradation, do you mean the frontend, API, or the Nebula engine part? Would you like to share the result?
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shawncao
commented on July 28, 2024
degradation is probably a wrong word, I actually don't have baseline to compare with - it is very possible that the test was not done on a large data set.
I found this is very slow when running a flame graph over a 1.5M rows for tree merge, it takes long time that I think we should profile and figure out optimizations options. This is mostly happens in Nebula Engine part, also UI has responsiveness issue handling the data rendering.
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Related Issues (20)
- New unit test failures
- Read formatted values
- [Feature] access info settings at cluster config level HOT 1
- Node server reports CURL - Code 28 after some time
- Add raft to Nebula server to make it a reliable meta data store layer
- [Bug] failed node is not removed
- Support doubles written as byte array in Parquet
- Support map columns fully
- Any column definition with from_macro set should automatically be a partition column
- Certain tables causing OOM even when retention is set very low HOT 1
- Support multiple files per ingest spec HOT 1
- Some malformed queries can take down nebula/node server HOT 1
- NebulaServer takes a long time to do anything sometimes
- Support DateTime column
- Introduce a flag to fail the whole spec if any file path failed to load
- We should capture all file path for in a spec's ID HOT 3
- fix pg_query build failure on linux
- [Feature] Support bounded time slice in timeline query HOT 3
- [Enhancement] enrich histogram for string typed data HOT 1
- [UDTF] need to support UDTF
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