big-data/hadoop
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

MAPREDUCE-7468: Change add-opens flag's default value from true to false (#6436)

Browse Source 
Co-authored-by: Benjamin Teke <bteke@cloudera.com>
This commit is contained in:
Benjamin Teke 2024-01-11 14:51:59 +01:00 committed by GitHub
parent 6a053765ee
commit ef636c4278
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 3 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TestMapReduceChildJVM.java
View File

@ -52,7 +52,6 @@ public void testCommandLine() throws Exception {
MyMRApp app = new MyMRApp(1, 0, true, this.getClass().getName(), true);
Configuration conf = new Configuration();
conf.setBoolean(MRConfig.MAPREDUCE_APP_SUBMISSION_CROSS_PLATFORM, true);
conf.setBoolean(MRJobConfig.MAPREDUCE_JVM_ADD_OPENS_JAVA_OPT, false);
Job job = app.submit(conf);
app.waitForState(job, JobState.SUCCEEDED);
app.verifyCompleted();

2
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/MRJobConfig.java
View File

@ -312,7 +312,7 @@ public interface MRJobConfig {
public static final String MAPREDUCE_JVM_ADD_OPENS_JAVA_OPT =
"mapreduce.jvm.add-opens-as-default";
public static final boolean MAPREDUCE_JVM_ADD_OPENS_JAVA_OPT_DEFAULT = true;
public static final boolean MAPREDUCE_JVM_ADD_OPENS_JAVA_OPT_DEFAULT = false;
public static final String IO_SORT_FACTOR = "mapreduce.task.io.sort.factor";

4
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/resources/mapred-default.xml
View File

@ -1822,12 +1822,12 @@
<property>
<name>mapreduce.jvm.add-opens-as-default</name>
<value>true</value>
<value>false</value>
<description>Since on JDK17 it's no longer possible to use the reflection API to
access non-public fields and methods add-opens flags should be added to MR AM
and map/reduce containers regardless of the user specified java opts. Setting
this to true will add the flags to the container launch commands on nodes with
JDK17 or higher. Defaults to true, but the setting has no effect on nodes using
JDK17 or higher. Defaults to false, and the setting has no effect on nodes using
JDK16 and before.
</description>
</property>