[Optimize] Add session variable max_fetch_remote_schema_tablet_count to limit tablets size for remote schema fetch#37217
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eldenmoon merged 4 commits intoapache:masterfrom Jul 8, 2024
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…` to limit tablets size for remote schema fetch Describing tables with many partitions and tablets can cause high CPU usage. To mitigate this, we estimate and pick sample tablets for schema fetch, reducing the overall cost.
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TPC-H: Total hot run time: 39529 ms |
TPC-DS: Total hot run time: 173369 ms |
ClickBench: Total hot run time: 30.93 s |
csun5285
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Jul 3, 2024
fe/fe-core/src/main/java/org/apache/doris/catalog/OlapTable.java
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run buildall |
TPC-H: Total hot run time: 39827 ms |
TPC-DS: Total hot run time: 173779 ms |
ClickBench: Total hot run time: 30.34 s |
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run buildall |
TPC-H: Total hot run time: 40098 ms |
TPC-DS: Total hot run time: 172821 ms |
ClickBench: Total hot run time: 30.37 s |
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PR approved by at least one committer and no changes requested. |
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…` to limit tablets size for remote schema fetch (apache#37217) Describing tables with many partitions and tablets can cause high CPU usage. To mitigate this, we estimate and pick sample tablets for schema fetch, reducing the overall cost.
eldenmoon
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eldenmoon
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Jul 16, 2024
…` to limit tablets size for remote schema fetch (apache#37217) Describing tables with many partitions and tablets can cause high CPU usage. To mitigate this, we estimate and pick sample tablets for schema fetch, reducing the overall cost.
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Describing tables with many partitions and tablets can cause high CPU usage. To mitigate this, we estimate and pick sample tablets for schema fetch, reducing the overall cost.