HHH-14892 Enable parallel testing for DB2

Author: beikov

docker_db.sh

@@ -443,6 +443,7 @@ EOF
         OUTPUT=$($CONTAINER_CLI logs db2 2>&1)
     done
     $CONTAINER_CLI exec -t db2 su - orm_test bash -c ". /database/config/orm_test/sqllib/db2profile; /database/config/orm_test/sqllib/bin/db2 'connect to orm_test'; /database/config/orm_test/sqllib/bin/db2 'CREATE USER TEMPORARY TABLESPACE usr_tbsp MANAGED BY AUTOMATIC STORAGE'"
+    db2_setup
 }
 
 db2_12_1() {
@@ -488,6 +489,19 @@ EOF
         OUTPUT=$($CONTAINER_CLI logs db2 2>&1)
     done
     $CONTAINER_CLI exec -t db2 su - orm_test bash -c ". /database/config/orm_test/sqllib/db2profile; /database/config/orm_test/sqllib/bin/db2 'connect to orm_test'; /database/config/orm_test/sqllib/bin/db2 'CREATE USER TEMPORARY TABLESPACE usr_tbsp MANAGED BY AUTOMATIC STORAGE'"
+    db2_setup
+}
+
+db2_setup() {
+    pids=()
+    for n in $(seq 1 $(($(nproc)/2)))
+    do
+      $CONTAINER_CLI exec -t db2 su - orm_test bash -c ". /database/config/orm_test/sqllib/db2profile; /database/config/orm_test/sqllib/bin/db2 'connect to orm_test'; /database/config/orm_test/sqllib/bin/db2 'create tenant ORM_${n}';" &
+      pids[${i}]=$!
+    done
+    for pid in ${pids[*]}; do
+        wait $pid
+    done
 }
 
 db2_spatial() {

hibernate-core/hibernate-core.gradle

@@ -261,7 +261,8 @@ tasks.withType( Test.class ).each { test ->
 
     // see GradleParallelTestingResolver for how the test worker id is resolved in JDBC configs
     if ( project.db == "h2" || project.db == "hsqldb" || project.db == "pgsql_ci" || project.db == "edb_ci"
-            || project.db == "oracle_ci" || project.db == "oracle_xe_ci" || project.db == "mysql_ci" || project.db == "mariadb_ci" ) {
+            || project.db == "oracle_ci" || project.db == "oracle_xe_ci" || project.db == "mysql_ci" || project.db == "mariadb_ci"
+            || project.db == "db2_ci") {
         // Most systems have multi-threading and maxing out a core on both threads will hurt performance
         // Also, as soon as we hit 16+ threads, the returns are diminishing, so divide by 4
         def threadCount = Runtime.runtime.availableProcessors()

hibernate-envers/hibernate-envers.gradle

@@ -57,7 +57,8 @@ configurations {
 tasks.withType( Test.class ).each { test ->
     // see GradleParallelTestingResolver for how the test worker id is resolved in JDBC configs
     if ( project.db == "h2" || project.db == "hsqldb" || project.db == "pgsql_ci" || project.db == "edb_ci"
-            || project.db == "oracle_ci" || project.db == "oracle_xe_ci" || project.db == "mysql_ci" || project.db == "mariadb_ci" ) {
+            || project.db == "oracle_ci" || project.db == "oracle_xe_ci" || project.db == "mysql_ci" || project.db == "mariadb_ci"
+            || project.db == "db2_ci") {
         // Most systems have multi-threading and maxing out a core on both threads will hurt performance
         // Also, as soon as we hit 16+ threads, the returns are diminishing, so divide by 4
         def threadCount = Runtime.runtime.availableProcessors()

local-build-plugins/src/main/groovy/local.databases.gradle

@@ -334,7 +334,7 @@ ext {
                     'jdbc.driver': 'com.ibm.db2.jcc.DB2Driver',
                     'jdbc.user'  : 'orm_test',
                     'jdbc.pass'  : 'orm_test',
-                    'jdbc.url'   : 'jdbc:db2://' + dbHost + ':50000/orm_test',
+                    'jdbc.url'   : 'jdbc:db2://' + dbHost + ':50000/orm_test:specialRegisters=TENANT=\'ORM_$worker\';',
                     'jdbc.datasource' : 'com.ibm.db2.jcc.DB2Driver',
 //                        'jdbc.datasource' : 'com.ibm.db2.jcc.DB2SimpleDataSource',
                     'connection.init_sql' : ''