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[fix](bucket) Raise autobucket_min_buckets default from 1 to 3 #63729

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[fix](bucket) Raise autobucket_min_buckets default from 1 to 3 #63729

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77358f6
[fix](bucket) Raise autobucket_min_buckets default from 1 to 3
deardeng May 27, 2026
c68dde0
fix case
deardeng May 28, 2026
60a1dcd
fix ut
deardeng May 28, 2026
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2 changes: 1 addition & 1 deletion fe/fe-common/src/main/java/org/apache/doris/common/Config.java
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Original file line number Diff line number Diff line change
Expand Up @@ -2639,7 +2639,7 @@ public class Config extends ConfigBase {
public static long analyze_record_limit = 20000;

@ConfField(mutable = true, masterOnly = true, description = {"Minimum number of buckets for auto bucketing."})
public static int autobucket_min_buckets = 1;
public static int autobucket_min_buckets = 3;
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@ConfField(mutable = true, masterOnly = true, description = {"Maximum number of buckets for auto bucketing."})
public static int autobucket_max_buckets = 128;
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4 changes: 2 additions & 2 deletions fe/fe-core/src/test/java/org/apache/doris/catalog/DynamicPartitionTableTest.java
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Expand Up @@ -1835,7 +1835,7 @@ public void testAutoBuckets() throws Exception {
partitions = Lists.newArrayList(table.getAllPartitions());
partitions.sort(Comparator.comparing(Partition::getId));
Assert.assertEquals(53, partitions.size());
Assert.assertEquals(1, partitions.get(partitions.size() - 1).getDistributionInfo().getBucketNum());
Assert.assertEquals(3, partitions.get(partitions.size() - 1).getDistributionInfo().getBucketNum());
Config.autobucket_out_of_bounds_percent_threshold = 0.5;

table.readLock();
Expand Down Expand Up @@ -1887,7 +1887,7 @@ public void testAutoBuckets() throws Exception {
if (i < 52) {
Assert.assertEquals(10, idx.getTablets().size());
} else if (i == 52) {
Assert.assertEquals(1, idx.getTablets().size());
Assert.assertEquals(3, idx.getTablets().size());
} else if (i == 53) {
Assert.assertEquals(20, idx.getTablets().size());
}
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4 changes: 2 additions & 2 deletions regression-test/suites/autobucket/test_autobucket.groovy
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Expand Up @@ -62,7 +62,7 @@ suite("test_autobucket") {
// XXX: buckets at pos(8), next maybe impl by sql meta
assertEquals(5, Integer.valueOf(result.get(0).Buckets))
// set back to default
sql "ADMIN SET FRONTEND CONFIG ('autobucket_min_buckets' = '1')"
sql "ADMIN SET FRONTEND CONFIG ('autobucket_min_buckets' = '3')"
sql "drop table if exists autobucket_test_min_buckets"

// set max to 1
Expand All @@ -84,7 +84,7 @@ suite("test_autobucket") {
result = sql_return_maparray "show partitions from autobucket_test_max_buckets"
logger.info("${result}")
// XXX: buckets at pos(8), next maybe impl by sql meta
assertEquals(1, Integer.valueOf(result.get(0).Buckets)) //equals max bucket
assertEquals(3, Integer.valueOf(result.get(0).Buckets)) //equals max bucket
// set back to default
sql "ADMIN SET FRONTEND CONFIG ('autobucket_max_buckets' = '128')"
sql "drop table if exists autobucket_test_max_buckets"
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