Fix flaky for test instr_in_shmem_terminate. (#10498)

Enlarge the sleep time for a query which will be canceled later
to avoid slow execution fails the test.

Normally the test's running time should not get affected since the
sleep query will get terminate immediately.

(cherry picked from commit bbccf20c)

src/test/isolation2/expected/instr_in_shmem_terminate.out

@@ -51,7 +51,7 @@ CREATE TABLE foo AS SELECT i a, i b FROM generate_series(1, 10) i;
 CREATE 10
 
 -- this query will be terminated by 'test pg_terminate_backend'
-1&:EXPLAIN ANALYZE CREATE TEMP TABLE t1 AS SELECT count(*) FROM QUERY_METRICS.foo WHERE pg_sleep(20) IS NULL;  <waiting ...>
+1&:EXPLAIN ANALYZE CREATE TEMP TABLE t1 AS SELECT count(*) FROM QUERY_METRICS.foo WHERE pg_sleep(200) IS NULL;  <waiting ...>
 -- terminate above query
 SELECT pg_terminate_backend(pid, 'test pg_terminate_backend') FROM pg_stat_activity WHERE query LIKE 'EXPLAIN ANALYZE CREATE TEMP TABLE t1 AS SELECT%' ORDER BY pid LIMIT 1;
  pg_terminate_backend 
@@ -84,7 +84,7 @@ SELECT count(*) FROM (SELECT 1 FROM gp_instrument_shmem_detail GROUP BY ssid, cc
 (1 row)
 
 -- this query will be cancelled by 'test pg_cancel_backend'
-2&:EXPLAIN ANALYZE CREATE TEMP TABLE t2 AS SELECT count(*) FROM QUERY_METRICS.foo WHERE pg_sleep(20) IS NULL;  <waiting ...>
+2&:EXPLAIN ANALYZE CREATE TEMP TABLE t2 AS SELECT count(*) FROM QUERY_METRICS.foo WHERE pg_sleep(200) IS NULL;  <waiting ...>
 -- cancel above query
 SELECT pg_cancel_backend(pid, 'test pg_cancel_backend') FROM pg_stat_activity WHERE query LIKE 'EXPLAIN ANALYZE CREATE TEMP TABLE t2 AS SELECT%' ORDER BY pid LIMIT 1;
  pg_cancel_backend 
@@ -114,7 +114,7 @@ SELECT count(*) FROM (SELECT 1 FROM gp_instrument_shmem_detail GROUP BY ssid, cc
 (1 row)
 
 -- this query will be cancelled by 'test pg_cancel_backend'
-3&:SET OPTIMIZER TO off;EXPLAIN ANALYZE INSERT INTO QUERY_METRICS.a SELECT *, pg_sleep(1) FROM generate_series(1,10);  <waiting ...>
+3&:SET OPTIMIZER TO off;EXPLAIN ANALYZE INSERT INTO QUERY_METRICS.a SELECT *, pg_sleep(20) FROM generate_series(1,10);  <waiting ...>
 
 -- validate plan nodes exist in instrument solts
 SELECT count(*) FROM pg_sleep(1);
@@ -171,7 +171,7 @@ SELECT count(*) FROM (SELECT 1 FROM gp_instrument_shmem_detail GROUP BY ssid, cc
 (1 row)
 
 -- this query will be cancelled by 'test pg_cancel_backend'
-4&:SET OPTIMIZER TO off;SELECT a, b, array_dims(array_agg(x)) FROM QUERY_METRICS.mergeappend_test r GROUP BY a, b UNION ALL SELECT NULL, NULL, array_dims(array_agg(x)) FROM QUERY_METRICS.mergeappend_test r, pg_sleep(10) ORDER BY 1,2;  <waiting ...>
+4&:SET OPTIMIZER TO off;SELECT a, b, array_dims(array_agg(x)) FROM QUERY_METRICS.mergeappend_test r GROUP BY a, b UNION ALL SELECT NULL, NULL, array_dims(array_agg(x)) FROM QUERY_METRICS.mergeappend_test r, pg_sleep(200) ORDER BY 1,2;  <waiting ...>
 
 -- validate plan nodes exist in instrument solts
 SELECT count(*) FROM pg_sleep(1);
@@ -221,7 +221,7 @@ SELECT count(*) FROM (SELECT 1 FROM gp_instrument_shmem_detail GROUP BY ssid, cc
 (1 row)
 
 -- this query will be cancelled by 'test pg_cancel_backend'
-5&:SET OPTIMIZER TO off;EXPLAIN ANALYZE INSERT INTO QUERY_METRICS.a(id) SELECT oid FROM pg_class, pg_sleep(10);  <waiting ...>
+5&:SET OPTIMIZER TO off;EXPLAIN ANALYZE INSERT INTO QUERY_METRICS.a(id) SELECT oid FROM pg_class, pg_sleep(200);  <waiting ...>
 
 -- validate QD and entrydb have instrumentations on each backend process
 SELECT count(*) FROM pg_sleep(1);

src/test/isolation2/sql/instr_in_shmem_terminate.sql

@@ -58,7 +58,7 @@ SELECT count(*) FROM (SELECT 1 FROM gp_instrument_shmem_detail GROUP BY ssid, cc
 CREATE TABLE foo AS SELECT i a, i b FROM generate_series(1, 10) i;
 
 -- this query will be terminated by 'test pg_terminate_backend'
-1&:EXPLAIN ANALYZE CREATE TEMP TABLE t1 AS SELECT count(*) FROM QUERY_METRICS.foo WHERE pg_sleep(20) IS NULL;
+1&:EXPLAIN ANALYZE CREATE TEMP TABLE t1 AS SELECT count(*) FROM QUERY_METRICS.foo WHERE pg_sleep(200) IS NULL;
 -- terminate above query
 SELECT pg_terminate_backend(pid, 'test pg_terminate_backend')
 FROM pg_stat_activity WHERE query LIKE 'EXPLAIN ANALYZE CREATE TEMP TABLE t1 AS SELECT%' ORDER BY pid LIMIT 1;
@@ -76,7 +76,7 @@ SELECT count(*) FROM foo, pg_sleep(2);
 SELECT count(*) FROM (SELECT 1 FROM gp_instrument_shmem_detail GROUP BY ssid, ccnt) t;
 
 -- this query will be cancelled by 'test pg_cancel_backend'
-2&:EXPLAIN ANALYZE CREATE TEMP TABLE t2 AS SELECT count(*) FROM QUERY_METRICS.foo WHERE pg_sleep(20) IS NULL;
+2&:EXPLAIN ANALYZE CREATE TEMP TABLE t2 AS SELECT count(*) FROM QUERY_METRICS.foo WHERE pg_sleep(200) IS NULL;
 -- cancel above query
 SELECT pg_cancel_backend(pid, 'test pg_cancel_backend')
 FROM pg_stat_activity WHERE query LIKE 'EXPLAIN ANALYZE CREATE TEMP TABLE t2 AS SELECT%' ORDER BY pid LIMIT 1;
@@ -94,7 +94,7 @@ SELECT count(*) FROM foo, pg_sleep(2);
 SELECT count(*) FROM (SELECT 1 FROM gp_instrument_shmem_detail GROUP BY ssid, ccnt) t;
 
 -- this query will be cancelled by 'test pg_cancel_backend'
-3&:SET OPTIMIZER TO off;EXPLAIN ANALYZE INSERT INTO QUERY_METRICS.a SELECT *, pg_sleep(1) FROM generate_series(1,10);
+3&:SET OPTIMIZER TO off;EXPLAIN ANALYZE INSERT INTO QUERY_METRICS.a SELECT *, pg_sleep(20) FROM generate_series(1,10);
 
 -- validate plan nodes exist in instrument solts
 SELECT count(*) FROM pg_sleep(1);
@@ -129,7 +129,7 @@ SELECT count(*) FROM (SELECT 1 FROM gp_instrument_shmem_detail GROUP BY ssid, cc
 -- this query will be cancelled by 'test pg_cancel_backend'
 4&:SET OPTIMIZER TO off;SELECT a, b, array_dims(array_agg(x)) FROM QUERY_METRICS.mergeappend_test r GROUP BY a, b
 UNION ALL
-SELECT NULL, NULL, array_dims(array_agg(x)) FROM QUERY_METRICS.mergeappend_test r, pg_sleep(10)
+SELECT NULL, NULL, array_dims(array_agg(x)) FROM QUERY_METRICS.mergeappend_test r, pg_sleep(200)
 ORDER BY 1,2;
 
 -- validate plan nodes exist in instrument solts
@@ -159,7 +159,7 @@ SELECT count(*) FROM foo, pg_sleep(2);
 SELECT count(*) FROM (SELECT 1 FROM gp_instrument_shmem_detail GROUP BY ssid, ccnt) t;
 
 -- this query will be cancelled by 'test pg_cancel_backend'
-5&:SET OPTIMIZER TO off;EXPLAIN ANALYZE INSERT INTO QUERY_METRICS.a(id) SELECT oid FROM pg_class, pg_sleep(10);
+5&:SET OPTIMIZER TO off;EXPLAIN ANALYZE INSERT INTO QUERY_METRICS.a(id) SELECT oid FROM pg_class, pg_sleep(200);
 
 -- validate QD and entrydb have instrumentations on each backend process
 SELECT count(*) FROM pg_sleep(1);