weizhengte commented on code in PR #8859:
URL: https://github.com/apache/incubator-doris/pull/8859#discussion_r856874191
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fe/fe-core/src/main/java/org/apache/doris/common/Config.java:
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@@ -1629,6 +1629,11 @@ public class Config extends ConfigBase {
*/
@ConfField(mutable = true, masterOnly = true)
public static int cbo_max_statistics_job_num = 20;
+ /*
+ * the max unfinished statistics task number
+ */
+ @ConfField(mutable = true, masterOnly = true)
+ public static int cbo_max_statistics_task_num = 512;
Review Comment:
This further controls the number of statistical tasks, mainly for some
tables with many columns. Too many statistical tasks are divided, which may
affect performance. this problem can be avoided by this configuration.
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