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HDFS-13746. Still occasional "Should be different group" failure in TestRefreshUserMappings#testGroupMappingRefresh 

(Contributed by Siyao Meng via Daniel Templeton)

Change-Id: I9fad1537ace38367a463d9fe67aaa28d3178fc69
(cherry picked from commit 8512e1a91b)
This commit is contained in:
Daniel Templeton 2018-08-16 13:43:49 -07:00
parent 97c1934247
commit fbedf89377
1 changed files with 27 additions and 24 deletions
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43
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/security/TestRefreshUserMappings.java
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@ -34,7 +34,6 @@ import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.apache.hadoop.conf.Configuration;
@ -46,6 +45,8 @@ import org.apache.hadoop.security.authorize.AuthorizationException;
import org.apache.hadoop.security.authorize.DefaultImpersonationProvider;
import org.apache.hadoop.security.authorize.ProxyUsers;
import org.apache.hadoop.test.GenericTestUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.event.Level;
import org.junit.After;
import org.junit.Before;
@ -53,6 +54,8 @@ import org.junit.Test;
public class TestRefreshUserMappings {
private static final Logger LOG = LoggerFactory.getLogger(
TestRefreshUserMappings.class);
private MiniDFSCluster cluster;
Configuration config;
private static final long groupRefreshTimeoutSec = 1;
@ -119,40 +122,40 @@ public class TestRefreshUserMappings {
Groups groups = Groups.getUserToGroupsMappingService(config);
String user = UserGroupInformation.getCurrentUser().getUserName();
System.out.println("First attempt:");
LOG.debug("First attempt:");
List<String> g1 = groups.getGroups(user);
String [] str_groups = new String [g1.size()];
g1.toArray(str_groups);
System.out.println(Arrays.toString(str_groups));
LOG.debug(g1.toString());
System.out.println("Second attempt, should be the same:");
LOG.debug("Second attempt, should be the same:");
List<String> g2 = groups.getGroups(user);
g2.toArray(str_groups);
System.out.println(Arrays.toString(str_groups));
LOG.debug(g2.toString());
for(int i=0; i<g2.size(); i++) {
assertEquals("Should be same group ", g1.get(i), g2.get(i));
}
// Test refresh command
admin.run(args);
System.out.println("Third attempt(after refresh command), should be different:");
LOG.debug("Third attempt(after refresh command), should be different:");
List<String> g3 = groups.getGroups(user);
g3.toArray(str_groups);
System.out.println(Arrays.toString(str_groups));
LOG.debug(g3.toString());
for(int i=0; i<g3.size(); i++) {
assertFalse("Should be different group: " + g1.get(i) + " and " + g3.get(i),
g1.get(i).equals(g3.get(i)));
assertFalse("Should be different group: "
+ g1.get(i) + " and " + g3.get(i), g1.get(i).equals(g3.get(i)));
}
// Test timeout
Thread.sleep(groupRefreshTimeoutSec * 1500);
System.out.println("Fourth attempt(after timeout), should be different:");
List<String> g4 = groups.getGroups(user);
g4.toArray(str_groups);
System.out.println(Arrays.toString(str_groups));
for(int i=0; i<g4.size(); i++) {
assertFalse("Should be different group ", g3.get(i).equals(g4.get(i)));
LOG.debug("Fourth attempt(after timeout), should be different:");
GenericTestUtils.waitFor(() -> {
List<String> g4;
try {
g4 = groups.getGroups(user);
} catch (IOException e) {
return false;
}
LOG.debug(g4.toString());
// if g4 is the same as g3, wait and retry
return !g3.equals(g4);
}, 50, Math.toIntExact(groupRefreshTimeoutSec * 1000 * 30));
}
@Test