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Posted to commits@druid.apache.org by GitBox <gi...@apache.org> on 2020/09/09 21:02:50 UTC
[GitHub] [druid] capistrant opened a new issue #10374: Vectorized Queries Failing in VectorMatch#copyFrom as src array cannot fit into dest array
capistrant opened a new issue #10374:
URL: https://github.com/apache/druid/issues/10374
Please provide a detailed title (e.g. "Broker crashes when using TopN query with Bound filter" instead of just "Broker crashes").
### Affected Version
0.18.1
### Description
I am in the beginning steps of troubleshooting this and I will add more details as I find out how to reproduce the issue consistently. I am currently seeing queries fail in vectorization code when VectorMatch#copyFrom tries to copy a VectorMatch into another where the src VectorMatch selection array is too big to fit in to the destination selection array. This violates the Preconditions check and causes a query failure.
I am currently only able to reproduce with one query on my cluster. This query is a timeseries query with a deeply nested or filter on a dimension value. When I flip this filter to use `IN` instead of `or`, the query runs successfully. The query also runs successfully as a non-vectorized query. This leads me to believe there may be a bug in the OrFilter code leading to these query failures.
I wanted to get this issue up on the board now so I can see if anyone else has been hitting it. As I said, I will revamp the problem report as soon as I can reproduce this consistently allowing for more thorough analysis and documentation.
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[GitHub] [druid] capistrant closed issue #10374: Vectorized Queries Failing in VectorMatch#copyFrom as src array cannot fit into dest array
Posted by GitBox <gi...@apache.org>.
capistrant closed issue #10374:
URL: https://github.com/apache/druid/issues/10374
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[GitHub] [druid] capistrant commented on issue #10374: Vectorized Queries Failing in VectorMatch#copyFrom as src array cannot fit into dest array
Posted by GitBox <gi...@apache.org>.
capistrant commented on issue #10374:
URL: https://github.com/apache/druid/issues/10374#issuecomment-691318411
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[GitHub] [druid] capistrant closed issue #10374: Vectorized Queries Failing in VectorMatch#copyFrom as src array cannot fit into dest array
Posted by GitBox <gi...@apache.org>.
capistrant closed issue #10374:
URL: https://github.com/apache/druid/issues/10374
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[GitHub] [druid] capistrant commented on issue #10374: Vectorized Queries Failing in VectorMatch#copyFrom as src array cannot fit into dest array
Posted by GitBox <gi...@apache.org>.
capistrant commented on issue #10374:
URL: https://github.com/apache/druid/issues/10374#issuecomment-691318411
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[GitHub] [druid] capistrant closed issue #10374: Vectorized Queries Failing in VectorMatch#copyFrom as src array cannot fit into dest array
Posted by GitBox <gi...@apache.org>.
capistrant closed issue #10374:
URL: https://github.com/apache/druid/issues/10374
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[GitHub] [druid] clintropolis commented on issue #10374: Vectorized Queries Failing in VectorMatch#copyFrom as src array cannot fit into dest array
Posted by GitBox <gi...@apache.org>.
clintropolis commented on issue #10374:
URL: https://github.com/apache/druid/issues/10374#issuecomment-689825374
Seems possibly related to #9994, either that issue (fixed in 0.19) or maybe a similar style of bug somewhere else since it sounds filter related.
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[GitHub] [druid] capistrant commented on issue #10374: Vectorized Queries Failing in VectorMatch#copyFrom as src array cannot fit into dest array
Posted by GitBox <gi...@apache.org>.
capistrant commented on issue #10374:
URL: https://github.com/apache/druid/issues/10374#issuecomment-691318411
Wow thanks @clintropolis ... Patched up my fork with #9994 and this did the trick for the query that I had to reproduce the issue. Since I am not able to trigger any more issues for vectorization, I will go ahead and close this. Definitely an easy patch for those who are not able to upgrade to druid 19 at this time.
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