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new a4c5c03acfd [fix](mtmv) Add debug log decide for performance when
query rewrite by materialized view (#39914) (#39952)
a4c5c03acfd is described below
commit a4c5c03acfda7e3272739fae41afdf559e64d12b
Author: seawinde <149132972+seawi...@users.noreply.github.com>
AuthorDate: Tue Aug 27 14:27:44 2024 +0800
[fix](mtmv) Add debug log decide for performance when query rewrite by
materialized view (#39914) (#39952)
## Proposed changes
In method `AbstractMaterializedViewRule#isMaterializationValid` Should
add `LOG.isDebugEnabled()` before print debug log. Because
`Plan#treeString` in debug log is performance consume.
## Proposed changes
pr: https://github.com/apache/doris/pull/39914
commitId: 45ddb8ce
---
.../mv/AbstractMaterializedViewRule.java | 30 +++++++++++++---------
1 file changed, 18 insertions(+), 12 deletions(-)
diff --git
a/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/exploration/mv/AbstractMaterializedViewRule.java
b/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/exploration/mv/AbstractMaterializedViewRule.java
index 2f2e4e5ddc0..541c935d54c 100644
---
a/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/exploration/mv/AbstractMaterializedViewRule.java
+++
b/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/exploration/mv/AbstractMaterializedViewRule.java
@@ -831,10 +831,12 @@ public abstract class AbstractMaterializedViewRule
implements ExplorationRuleFac
"View struct info is invalid", () ->
String.format("view plan is %s",
context.getStructInfo().getOriginalPlan().treeString()));
// tmp to location question
- LOG.debug(String.format("View struct info is invalid, mv
identifier is %s, query plan is %s,"
- + "view plan is %s",
- context.generateMaterializationIdentifier(),
queryPlan.treeString(),
- context.getStructInfo().getTopPlan().treeString()));
+ if (LOG.isDebugEnabled()) {
+ LOG.debug(String.format("View struct info is invalid, mv
identifier is %s, query plan is %s,"
+ + "view plan is %s",
+ context.generateMaterializationIdentifier(),
queryPlan.treeString(),
+
context.getStructInfo().getTopPlan().treeString()));
+ }
cascadesContext.getMemo().recordMaterializationCheckResult(this.getClass(),
materializationId,
false);
return false;
@@ -846,20 +848,24 @@ public abstract class AbstractMaterializedViewRule
implements ExplorationRuleFac
context.recordFailReason(context.getStructInfo(),
"View struct info is invalid", () -> String.format("view
plan is %s",
context.getStructInfo().getOriginalPlan().treeString()));
- LOG.debug(String.format("View struct info is invalid, mv
identifier is %s, query plan is %s,"
- + "view plan is %s",
- context.generateMaterializationIdentifier(),
queryPlan.treeString(),
- context.getStructInfo().getTopPlan().treeString()));
+ if (LOG.isDebugEnabled()) {
+ LOG.debug(String.format("View struct info is invalid, mv
identifier is %s, query plan is %s,"
+ + "view plan is %s",
+ context.generateMaterializationIdentifier(),
queryPlan.treeString(),
+ context.getStructInfo().getTopPlan().treeString()));
+ }
return false;
}
if (!context.getStructInfo().isValid()) {
context.recordFailReason(context.getStructInfo(),
"View original struct info is invalid", () ->
String.format("view plan is %s",
context.getStructInfo().getOriginalPlan().treeString()));
- LOG.debug(String.format("View struct info is invalid, mv
identifier is %s, query plan is %s,"
- + "view plan is %s",
- context.generateMaterializationIdentifier(),
queryPlan.treeString(),
- context.getStructInfo().getTopPlan().treeString()));
+ if (LOG.isDebugEnabled()) {
+ LOG.debug(String.format("View struct info is invalid, mv
identifier is %s, query plan is %s,"
+ + "view plan is %s",
+ context.generateMaterializationIdentifier(),
queryPlan.treeString(),
+ context.getStructInfo().getTopPlan().treeString()));
+ }
return false;
}
return true;
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