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Posted to commits@doris.apache.org by mo...@apache.org on 2024/01/19 02:47:23 UTC

(doris) branch master updated: [fix](statistics)Reanalyze olapTable if getRowCount is not 0 and last time row count is 0 (#30096)

This is an automated email from the ASF dual-hosted git repository.

morrysnow pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/doris.git


The following commit(s) were added to refs/heads/master by this push:
     new b2a9c5b7d43 [fix](statistics)Reanalyze olapTable if getRowCount is not 0 and last time row count is 0 (#30096)
b2a9c5b7d43 is described below

commit b2a9c5b7d431f13fa28b0dc993f46a88430cfa46
Author: Jibing-Li <64...@users.noreply.github.com>
AuthorDate: Fri Jan 19 10:47:15 2024 +0800

    [fix](statistics)Reanalyze olapTable if getRowCount is not 0 and last time row count is 0 (#30096)
    
    Sample analyze may write 0 result if getRowCount is not updated while analyzing. So we need to reanalyze the table if getRowCount > 0 and previous analyze row count is 0. Otherwise the stats for this table may stay 0 for ever before user load new data to this table.
---
 fe/fe-common/src/main/java/org/apache/doris/common/Config.java     | 2 +-
 fe/fe-core/src/main/java/org/apache/doris/catalog/OlapTable.java   | 3 +++
 .../src/main/java/org/apache/doris/statistics/AnalysisManager.java | 2 +-
 .../java/org/apache/doris/statistics/StatisticsAutoCollector.java  | 2 +-
 .../src/main/java/org/apache/doris/statistics/TableStatsMeta.java  | 2 +-
 .../test/java/org/apache/doris/statistics/AnalysisManagerTest.java | 7 ++++++-
 6 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/fe/fe-common/src/main/java/org/apache/doris/common/Config.java b/fe/fe-common/src/main/java/org/apache/doris/common/Config.java
index 87181e637bf..a93745b4844 100644
--- a/fe/fe-common/src/main/java/org/apache/doris/common/Config.java
+++ b/fe/fe-common/src/main/java/org/apache/doris/common/Config.java
@@ -1565,7 +1565,7 @@ public class Config extends ConfigBase {
             "This parameter controls the time interval for automatic collection jobs to check the health of table"
                     + "statistics and trigger automatic collection"
     })
-    public static int auto_check_statistics_in_minutes = 10;
+    public static int auto_check_statistics_in_minutes = 5;
 
     /**
      * If set to TRUE, the compaction slower replica will be skipped when select get queryable replicas
diff --git a/fe/fe-core/src/main/java/org/apache/doris/catalog/OlapTable.java b/fe/fe-core/src/main/java/org/apache/doris/catalog/OlapTable.java
index 5e36886e56a..2c221a45500 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/catalog/OlapTable.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/catalog/OlapTable.java
@@ -1201,6 +1201,9 @@ public class OlapTable extends Table {
             return true;
         }
         long rowCount = getRowCount();
+        if (rowCount > 0 && tblStats.rowCount == 0) {
+            return true;
+        }
         long updateRows = tblStats.updatedRows.get();
         int tblHealth = StatisticsUtil.getTableHealth(rowCount, updateRows);
         return tblHealth < StatisticsUtil.getTableStatsHealthThreshold();
diff --git a/fe/fe-core/src/main/java/org/apache/doris/statistics/AnalysisManager.java b/fe/fe-core/src/main/java/org/apache/doris/statistics/AnalysisManager.java
index 2e12b443390..8f927694dc7 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/statistics/AnalysisManager.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/statistics/AnalysisManager.java
@@ -545,7 +545,7 @@ public class AnalysisManager implements Writable {
         }
         TableStatsMeta tableStats = findTableStatsStatus(tbl.getId());
         if (tableStats == null) {
-            updateTableStatsStatus(new TableStatsMeta(tbl.estimatedRowCount(), jobInfo, tbl));
+            updateTableStatsStatus(new TableStatsMeta(jobInfo.emptyJob ? 0 : tbl.estimatedRowCount(), jobInfo, tbl));
         } else {
             tableStats.update(jobInfo, tbl);
             logCreateTableStats(tableStats);
diff --git a/fe/fe-core/src/main/java/org/apache/doris/statistics/StatisticsAutoCollector.java b/fe/fe-core/src/main/java/org/apache/doris/statistics/StatisticsAutoCollector.java
index e2eeb21aad4..a09b56acfcc 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/statistics/StatisticsAutoCollector.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/statistics/StatisticsAutoCollector.java
@@ -209,7 +209,7 @@ public class StatisticsAutoCollector extends StatisticsCollector {
     @VisibleForTesting
     protected AnalysisInfo getReAnalyzeRequiredPart(AnalysisInfo jobInfo) {
         TableIf table = StatisticsUtil.findTable(jobInfo.catalogId, jobInfo.dbId, jobInfo.tblId);
-        // Skip tables that are too width.
+        // Skip tables that are too wide.
         if (table.getBaseSchema().size() > StatisticsUtil.getAutoAnalyzeTableWidthThreshold()) {
             return null;
         }
diff --git a/fe/fe-core/src/main/java/org/apache/doris/statistics/TableStatsMeta.java b/fe/fe-core/src/main/java/org/apache/doris/statistics/TableStatsMeta.java
index 926194a7258..9231c6a2bc7 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/statistics/TableStatsMeta.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/statistics/TableStatsMeta.java
@@ -157,7 +157,7 @@ public class TableStatsMeta implements Writable {
         jobType = analyzedJob.jobType;
         if (tableIf != null) {
             if (tableIf instanceof OlapTable) {
-                rowCount = tableIf.getRowCount();
+                rowCount = analyzedJob.emptyJob ? 0 : tableIf.getRowCount();
             }
             if (!analyzedJob.emptyJob && analyzedJob.colToPartitions.keySet()
                     .containsAll(tableIf.getBaseSchema().stream()
diff --git a/fe/fe-core/src/test/java/org/apache/doris/statistics/AnalysisManagerTest.java b/fe/fe-core/src/test/java/org/apache/doris/statistics/AnalysisManagerTest.java
index 2fc6d24e305..f8a77fe06db 100644
--- a/fe/fe-core/src/test/java/org/apache/doris/statistics/AnalysisManagerTest.java
+++ b/fe/fe-core/src/test/java/org/apache/doris/statistics/AnalysisManagerTest.java
@@ -275,7 +275,7 @@ public class AnalysisManagerTest {
         new MockUp<OlapTable>() {
 
             int count = 0;
-            int[] rowCount = new int[]{100, 100, 200, 200};
+            int[] rowCount = new int[]{100, 100, 200, 200, 1, 1};
 
             final Column c = new Column("col1", PrimitiveType.INT);
             @Mock
@@ -304,6 +304,11 @@ public class AnalysisManagerTest {
                 .setColToPartitions(new HashMap<>()).setColName("col1").build(), olapTable);
         stats2.updatedRows.addAndGet(20);
         Assertions.assertFalse(olapTable.needReAnalyzeTable(stats2));
+
+        TableStatsMeta stats3 = new TableStatsMeta(0, new AnalysisInfoBuilder()
+                .setColToPartitions(new HashMap<>()).setEmptyJob(true).setColName("col1").build(), olapTable);
+        Assertions.assertTrue(olapTable.needReAnalyzeTable(stats3));
+
     }
 
     @Test


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