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MAPREDUCE-7118. Distributed cache conflicts breaks backwards compatability. (Jason Lowe via wangda) 

Change-Id: I89ab4852b4ad305fec19812e8931c59d96581376
This commit is contained in:
Wangda Tan 2018-07-19 12:03:24 -07:00
parent 2564884757
commit b3b4d4ccb5
2 changed files with 21 additions and 7 deletions
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8
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/util/LocalResourceBuilder.java
View File

@ -27,7 +27,6 @@ import org.apache.hadoop.classification.InterfaceStability.Unstable;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.mapred.InvalidJobConfException;
import org.apache.hadoop.mapreduce.MRJobConfig;
import org.apache.hadoop.mapreduce.filecache.DistributedCache;
import org.apache.hadoop.yarn.api.records.LocalResource;
@ -144,10 +143,9 @@ class LocalResourceBuilder {
LocalResource orig = localResources.get(linkName);
if(orig != null && !orig.getResource().equals(URL.fromURI(p.toUri()))) {
throw new InvalidJobConfException(
getResourceDescription(orig.getType()) + orig.getResource()
+
" conflicts with " + getResourceDescription(type) + u);
LOG.warn(getResourceDescription(orig.getType()) + orig.getResource()
+ " conflicts with " + getResourceDescription(type) + u);
continue;
}
Boolean sharedCachePolicy = sharedCacheUploadPolicies.get(u.toString());
sharedCachePolicy =

20
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/test/java/org/apache/hadoop/mapreduce/v2/util/TestMRApps.java
View File

@ -360,7 +360,7 @@ public class TestMRApps {
}
@SuppressWarnings("deprecation")
@Test(timeout = 120000, expected = InvalidJobConfException.class)
@Test(timeout = 120000)
public void testSetupDistributedCacheConflicts() throws Exception {
Configuration conf = new Configuration();
conf.setClass("fs.mockfs.impl", MockFileSystem.class, FileSystem.class);
@ -388,10 +388,18 @@ public class TestMRApps {
Map<String, LocalResource> localResources =
new HashMap<String, LocalResource>();
MRApps.setupDistributedCache(conf, localResources);
assertEquals(1, localResources.size());
LocalResource lr = localResources.get("something");
//Archive wins
assertNotNull(lr);
assertEquals(10l, lr.getSize());
assertEquals(10l, lr.getTimestamp());
assertEquals(LocalResourceType.ARCHIVE, lr.getType());
}
@SuppressWarnings("deprecation")
@Test(timeout = 120000, expected = InvalidJobConfException.class)
@Test(timeout = 120000)
public void testSetupDistributedCacheConflictsFiles() throws Exception {
Configuration conf = new Configuration();
conf.setClass("fs.mockfs.impl", MockFileSystem.class, FileSystem.class);
@ -416,6 +424,14 @@ public class TestMRApps {
Map<String, LocalResource> localResources =
new HashMap<String, LocalResource>();
MRApps.setupDistributedCache(conf, localResources);
assertEquals(1, localResources.size());
LocalResource lr = localResources.get("something");
//First one wins
assertNotNull(lr);
assertEquals(10l, lr.getSize());
assertEquals(10l, lr.getTimestamp());
assertEquals(LocalResourceType.FILE, lr.getType());
}
@SuppressWarnings("deprecation")