github/ebean
4
0
Fork 0
mirror of https://github.com/ebean-orm/ebean.git synced 2024-04-21 10:51:47 +00:00
Code Issues Packages Projects Releases Wiki Activity

#2210 - Improve query plan capture - ability to change default threshold micros

Browse Source
This commit is contained in:
Robin Bygrave
2021-03-30 16:02:27 +13:00
parent f8c37772d4
commit 2a5fd7f3a9
6 changed files with 46 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files
ebean-core/src/test/java/org/tests/query/finder/TestCustomerFinder.java
+20 -4
View File
@@ -175,17 +175,24 @@ public class TestCustomerFinder extends BaseTestCase {
ResetBasicData.reset();
// change default collect query plan threshold to 200 micros
QueryPlanInit init0 = new QueryPlanInit();
init0.setAll(true);
init0.setThresholdMicros(200);
final List<MetaQueryPlan> plans = server().getMetaInfoManager().queryPlanInit(init0);
assertThat(plans.size()).isGreaterThan(1);
// the server has some plans
runQueries();
// enable query plan bind capture on all plans threshold 100 micros
// change query plan threshold to 100 micros
QueryPlanInit init = new QueryPlanInit();
init.setAll(true);
init.setThresholdMicros(100);
final List<MetaQueryPlan> appliedToPlans = server().getMetaInfoManager().queryPlanInit(init);
assertThat(appliedToPlans.size()).isGreaterThan(4);
// will collect bind captures
// run queries again
runQueries();
ServerMetrics metrics = server().getMetaInfoManager().collectMetrics();
@@ -203,12 +210,21 @@ public class TestCustomerFinder extends BaseTestCase {
// obtains db query plans ...
QueryPlanRequest request = new QueryPlanRequest();
List<MetaQueryPlan> plans = server().getMetaInfoManager().queryPlanCollectNow(request);
assertThat(plans).isNotEmpty();
// collect max 1000 plans (use something more like 10)
request.setMaxCount(1_000);
// don't collect any more plans if used 10 secs
request.setMaxTimeMillis(10_000);
List<MetaQueryPlan> plans0 = server().getMetaInfoManager().queryPlanCollectNow(request);
assertThat(plans0).isNotEmpty();
for (MetaQueryPlan plan : plans) {
logger.info("queryplan label:{}, queryTimeMicros:{} loc:{} sql:{} bind:{} plan:{}",
plan.getLabel(), plan.getQueryTimeMicros(), plan.getProfileLocation(),
plan.getSql(), plan.getBind(), plan.getPlan());
System.out.println(plan);
}
//DB.getBackgroundExecutor().scheduleWithFixedDelay(...)
}
@Test