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https://issues.apache.org/jira/browse/HADOOP-16350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16863061#comment-16863061
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Greg Senia edited comment on HADOOP-16350 at 6/13/19 1:15 PM:
--------------------------------------------------------------
[~szetszwo] and [~jojochuang] here is what I didn't send along.. If you look at
the code you will see that this allows it to operate as it did before by adding
this param to distcp job it will operate as it did before the patch as that
code path in the if block is what goes to remote server and in our case the
remote server is not even exposed to remote networks.
*hadoop.security.kms.client.allow.remote.kms=false*
hadoop distcp -*Dhadoop.security.kms.client.allow.remote.kms=false*
-Ddfs.namenode.kerberos.principal.pattern=*
-Dmapreduce.job.hdfs-servers.token-renewal.exclude=unit
hdfs:///processed/public/opendata/samples/distcp_test/distcp_file.txt
hdfs://unit/processed/public/opendata/samples/distcp_test/distcp_file2.txt
Here is the code that allows it to work by adding the if block the default is
true so that nothing changes and if you set to false via the prop the remote
call to the remote cluster does not occur
{code:java}
diff --git
a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeysPublic.java
b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeysPublic.java
index 0fa78c2..77222ee 100644
---
a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeysPublic.java
+++
b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeysPublic.java
@@ -837,6 +837,16 @@
* <a
href="{@docRoot}/../hadoop-project-dist/hadoop-common/core-default.xml">
* core-default.xml</a>
*/
+ public static final String KMS_CLIENT_ALLOW_REMOTE_KMS =
+ "hadoop.security.kms.client.allow.remote.kms";
+ /** Default value for KMS_CLIENT_ALLOW_REMOTE_KMS (true)*/
+ public static final boolean KMS_CLIENT_ALLOW_REMOTE_KMS_DEFAULT = true;
+
+ /**
+ * @see
+ * <a
href="{@docRoot}/../hadoop-project-dist/hadoop-common/core-default.xml">
+ * core-default.xml</a>
+ */
public static final String HADOOP_SECURITY_JAVA_SECURE_RANDOM_ALGORITHM_KEY
=
"hadoop.security.java.secure.random.algorithm";
/** Defalt value for HADOOP_SECURITY_JAVA_SECURE_RANDOM_ALGORITHM_KEY */
diff --git
a/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/HdfsKMSUtil.java
b/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/HdfsKMSUtil.java
index 30e8aa7..c6daae0 100644
---
a/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/HdfsKMSUtil.java
+++
b/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/HdfsKMSUtil.java
@@ -145,7 +145,13 @@
if (keyProviderUriStr == null) {
keyProviderUri = KMSUtil.getKeyProviderUri(conf,
keyProviderUriKeyName);
} else if (!keyProviderUriStr.isEmpty()) {
- keyProviderUri = URI.create(keyProviderUriStr);
+ // Check if KMS Traffic to Remote KMS Server is allowed. Default is
allowed
+ Boolean isRemoteKMSAllowed =
+
conf.getBoolean(CommonConfigurationKeysPublic.KMS_CLIENT_ALLOW_REMOTE_KMS,
+
CommonConfigurationKeysPublic.KMS_CLIENT_ALLOW_REMOTE_KMS_DEFAULT);
+ if (isRemoteKMSAllowed) {
+ keyProviderUri = URI.create(keyProviderUriStr);
+ }
}
if (keyProviderUri != null) {
credentials.addSecretKey(
{code}
was (Author: gss2002):
[~szetszwo] and [~jojochuang] here is what I didn't send along.. If you look at
the code you will see that this allows it to operate as it did before by adding
this param to distcp job it will operate as it did before the patch as that
code path in the if block is what goes to remote server and in our case the
remote server is not even exposed to remote networks.
*hadoop.security.kms.client.allow.remote.kms=false*
hadoop distcp -*Dhadoop.security.kms.client.allow.remote.kms=false*
-Ddfs.namenode.kerberos.principal.pattern=*
-Dmapreduce.job.hdfs-servers.token-renewal.exclude=unit
hdfs:///processed/public/opendata/samples/distcp_test/distcp_file.txt
hdfs://unit/processed/public/opendata/samples/distcp_test/distcp_file2.txt
Here is the code that allows it to work by adding the if block the default is
true so that nothing changes and if you set to false via the:
{code:java}
diff --git
a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeysPublic.java
b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeysPublic.java
index 0fa78c2..77222ee 100644
---
a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeysPublic.java
+++
b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeysPublic.java
@@ -837,6 +837,16 @@
* <a
href="{@docRoot}/../hadoop-project-dist/hadoop-common/core-default.xml">
* core-default.xml</a>
*/
+ public static final String KMS_CLIENT_ALLOW_REMOTE_KMS =
+ "hadoop.security.kms.client.allow.remote.kms";
+ /** Default value for KMS_CLIENT_ALLOW_REMOTE_KMS (true)*/
+ public static final boolean KMS_CLIENT_ALLOW_REMOTE_KMS_DEFAULT = true;
+
+ /**
+ * @see
+ * <a
href="{@docRoot}/../hadoop-project-dist/hadoop-common/core-default.xml">
+ * core-default.xml</a>
+ */
public static final String HADOOP_SECURITY_JAVA_SECURE_RANDOM_ALGORITHM_KEY
=
"hadoop.security.java.secure.random.algorithm";
/** Defalt value for HADOOP_SECURITY_JAVA_SECURE_RANDOM_ALGORITHM_KEY */
diff --git
a/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/HdfsKMSUtil.java
b/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/HdfsKMSUtil.java
index 30e8aa7..c6daae0 100644
---
a/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/HdfsKMSUtil.java
+++
b/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/HdfsKMSUtil.java
@@ -145,7 +145,13 @@
if (keyProviderUriStr == null) {
keyProviderUri = KMSUtil.getKeyProviderUri(conf,
keyProviderUriKeyName);
} else if (!keyProviderUriStr.isEmpty()) {
- keyProviderUri = URI.create(keyProviderUriStr);
+ // Check if KMS Traffic to Remote KMS Server is allowed. Default is
allowed
+ Boolean isRemoteKMSAllowed =
+
conf.getBoolean(CommonConfigurationKeysPublic.KMS_CLIENT_ALLOW_REMOTE_KMS,
+
CommonConfigurationKeysPublic.KMS_CLIENT_ALLOW_REMOTE_KMS_DEFAULT);
+ if (isRemoteKMSAllowed) {
+ keyProviderUri = URI.create(keyProviderUriStr);
+ }
}
if (keyProviderUri != null) {
credentials.addSecretKey(
{code}
> Ability to tell Hadoop not to request KMS Information from Remote NN
> ---------------------------------------------------------------------
>
> Key: HADOOP-16350
> URL: https://issues.apache.org/jira/browse/HADOOP-16350
> Project: Hadoop Common
> Issue Type: Improvement
> Components: common, kms
> Affects Versions: 2.8.3, 3.0.0, 2.7.6, 3.1.2
> Reporter: Greg Senia
> Assignee: Greg Senia
> Priority: Major
> Fix For: 3.3.0
>
> Attachments: HADOOP-16350.patch
>
>
> Before HADOOP-14104 Remote KMSServer URIs were not requested from the remote
> NameNode and their associated remote KMSServer delegation token. Many
> customers were using this as a security feature to prevent TDE/Encryption
> Zone data from being distcped to remote clusters. But there was still a use
> case to allow distcp of data residing in folders that are not being encrypted
> with a KMSProvider/Encrypted Zone.
> So after upgrading to a version of Hadoop that contained HADOOP-14104 distcp
> now fails as we along with other customers (HDFS-13696) DO NOT allow
> KMSServer endpoints to be exposed out of our cluster network as data residing
> in these TDE/Zones contain very critical data that cannot be distcped between
> clusters.
> I propose adding a new code block with the following custom property
> "hadoop.security.kms.client.allow.remote.kms" it will default to "true" so
> keeping current feature of HADOOP-14104 but if specified to "false" will
> allow this area of code to operate as it did before HADOOP-14104. I can see
> the value in HADOOP-14104 but the way Hadoop worked before this JIRA/Issue
> should of at least had an option specified to allow Hadoop/KMS code to
> operate similar to how it did before by not requesting remote KMSServer URIs
> which would than attempt to get a delegation token even if not operating on
> encrypted zones.
> Error when KMS Server traffic is not allowed between cluster networks per
> enterprise security standard which cannot be changed they denied the request
> for exception so the only solution is to allow a feature to not attempt to
> request tokens.
> {code:java}
> $ hadoop distcp -Ddfs.namenode.kerberos.principal.pattern=*
> -Dmapreduce.job.hdfs-servers.token-renewal.exclude=tech
> hdfs:///processed/public/opendata/samples/distcp_test/distcp_file.txt
> hdfs://tech/processed/public/opendata/samples/distcp_test/distcp_file2.txt
> 19/05/29 14:06:09 INFO tools.DistCp: Input Options: DistCpOptions
> {atomicCommit=false, syncFolder=false, deleteMissing=false,
> ignoreFailures=false, overwrite=false, append=false, useDiff=false,
> fromSnapshot=null, toSnapshot=null, skipCRC=false, blocking=true,
> numListstatusThreads=0, maxMaps=20, mapBandwidth=100,
> sslConfigurationFile='null', copyStrategy='uniformsize', preserveStatus=[],
> preserveRawXattrs=false, atomicWorkPath=null, logPath=null,
> sourceFileListing=null,
> sourcePaths=[hdfs:/processed/public/opendata/samples/distcp_test/distcp_file.txt],
>
> targetPath=hdfs://tech/processed/public/opendata/samples/distcp_test/distcp_file2.txt,
> targetPathExists=true, filtersFile='null', verboseLog=false}
> 19/05/29 14:06:09 INFO client.AHSProxy: Connecting to Application History
> server at ha21d53mn.unit.hdp.example.com/10.70.49.2:10200
> 19/05/29 14:06:10 INFO hdfs.DFSClient: Created HDFS_DELEGATION_TOKEN token
> 5093920 for gss2002 on ha-hdfs:unit
> 19/05/29 14:06:10 INFO security.TokenCache: Got dt for hdfs://unit; Kind:
> HDFS_DELEGATION_TOKEN, Service: ha-hdfs:unit, Ident: (HDFS_DELEGATION_TOKEN
> token 5093920 for gss2002)
> 19/05/29 14:06:10 INFO security.TokenCache: Got dt for hdfs://unit; Kind:
> kms-dt, Service: ha21d53en.unit.hdp.example.com:9292, Ident: (owner=gss2002,
> renewer=yarn, realUser=, issueDate=1559153170120, maxDate=1559757970120,
> sequenceNumber=237, masterKeyId=2)
> 19/05/29 14:06:10 INFO tools.SimpleCopyListing: Paths (files+dirs) cnt = 1;
> dirCnt = 0
> 19/05/29 14:06:10 INFO tools.SimpleCopyListing: Build file listing completed.
> 19/05/29 14:06:10 INFO tools.DistCp: Number of paths in the copy list: 1
> 19/05/29 14:06:10 INFO tools.DistCp: Number of paths in the copy list: 1
> 19/05/29 14:06:10 INFO client.AHSProxy: Connecting to Application History
> server at ha21d53mn.unit.hdp.example.com/10.70.49.2:10200
> 19/05/29 14:06:10 INFO hdfs.DFSClient: Created HDFS_DELEGATION_TOKEN token
> 556079 for gss2002 on ha-hdfs:tech
> 19/05/29 14:06:10 ERROR tools.DistCp: Exception encountered
> java.io.IOException: java.net.NoRouteToHostException: No route to host (Host
> unreachable)
> at
> org.apache.hadoop.crypto.key.kms.KMSClientProvider.addDelegationTokens(KMSClientProvider.java:1029)
> at
> org.apache.hadoop.crypto.key.KeyProviderDelegationTokenExtension.addDelegationTokens(KeyProviderDelegationTokenExtension.java:110)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.addDelegationTokens(DistributedFileSystem.java:2407)
> at
> org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodesInternal(TokenCache.java:140)
> at
> org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodesInternal(TokenCache.java:100)
> at
> org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodes(TokenCache.java:80)
> at
> org.apache.hadoop.tools.mapred.CopyOutputFormat.checkOutputSpecs(CopyOutputFormat.java:124)
> at org.apache.hadoop.mapreduce.JobSubmitter.checkSpecs(JobSubmitter.java:266)
> at
> org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:139)
> at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1290)
> at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1287)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1869)
> at org.apache.hadoop.mapreduce.Job.submit(Job.java:1287)
> at org.apache.hadoop.tools.DistCp.createAndSubmitJob(DistCp.java:193)
> at org.apache.hadoop.tools.DistCp.execute(DistCp.java:155)
> at org.apache.hadoop.tools.DistCp.run(DistCp.java:128)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)
> at org.apache.hadoop.tools.DistCp.main(DistCp.java:462)
> Caused by: java.net.NoRouteToHostException: No route to host (Host
> unreachable)
> at java.net.PlainSocketImpl.socketConnect(Native Method)
> at
> java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
> at
> java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
> at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
> at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
> at java.net.Socket.connect(Socket.java:589)
> at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
> at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
> at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
> at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
> at sun.net.www.http.HttpClient.New(HttpClient.java:339)
> at sun.net.www.http.HttpClient.New(HttpClient.java:357)
> at
> sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
> at
> sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
> at
> sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
> at
> sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
> at
> org.apache.hadoop.security.authentication.client.KerberosAuthenticator.authenticate(KerberosAuthenticator.java:188)
> at
> org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticator.authenticate(DelegationTokenAuthenticator.java:133)
> at
> org.apache.hadoop.security.authentication.client.AuthenticatedURL.openConnection(AuthenticatedURL.java:216)
> at
> org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticator.doDelegationTokenOperation(DelegationTokenAuthenticator.java:299)
> at
> org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticator.getDelegationToken(DelegationTokenAuthenticator.java:171)
> at
> org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticatedURL.getDelegationToken(DelegationTokenAuthenticatedURL.java:373)
> at
> org.apache.hadoop.crypto.key.kms.KMSClientProvider$4.run(KMSClientProvider.java:1016)
> at
> org.apache.hadoop.crypto.key.kms.KMSClientProvider$4.run(KMSClientProvider.java:1011)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1869)
> at
> org.apache.hadoop.crypto.key.kms.KMSClientProvider.addDelegationTokens(KMSClientProvider.java:1011)
> ... 19 more
> {code}
>
>
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