Skip to content

Spark 1490 Add kerberos support to the HistoryServer #513

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
wants to merge 4 commits into from
Closed

Spark 1490 Add kerberos support to the HistoryServer #513

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
4d76545
SPARK-1490 Add kerberos support to the HistoryServer
tgravescs Apr 23, 2014
0076b99
Update docs
tgravescs Apr 23, 2014
5418daa
fix typo in config
tgravescs Apr 23, 2014
e204a99
remove extra logging
tgravescs Apr 23, 2014
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 4 additions & 0 deletions core/src/main/scala/org/apache/spark/deploy/SparkHadoopUtil.scala
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -75,6 +75,10 @@ class SparkHadoopUtil {

def getSecretKeyFromUserCredentials(key: String): Array[Byte] = { null }

def loginUserFromKeytab(principalName: String, keytabFilename: String) {
UserGroupInformation.loginUserFromKeytab(principalName, keytabFilename)
}

}

object SparkHadoopUtil {
Expand Down
16 changes: 16 additions & 0 deletions core/src/main/scala/org/apache/spark/deploy/history/HistoryServer.scala
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@ import scala.collection.mutable
import org.apache.hadoop.fs.{FileStatus, Path}

import org.apache.spark.{Logging, SecurityManager, SparkConf}
import org.apache.spark.deploy.SparkHadoopUtil
import org.apache.spark.scheduler._
import org.apache.spark.ui.{WebUI, SparkUI}
import org.apache.spark.ui.JettyUtils._
Expand Down Expand Up @@ -257,6 +258,7 @@ object HistoryServer {
val STATIC_RESOURCE_DIR = SparkUI.STATIC_RESOURCE_DIR

def main(argStrings: Array[String]) {
initSecurity()
val args = new HistoryServerArguments(argStrings)
val securityManager = new SecurityManager(conf)
val server = new HistoryServer(args.logDir, securityManager, conf)
Expand All @@ -266,6 +268,20 @@ object HistoryServer {
while(true) { Thread.sleep(Int.MaxValue) }
server.stop()
}

def initSecurity() {
// If we are accessing HDFS and it has security enabled (Kerberos), we have to login
// from a keytab file so that we can access HDFS beyond the kerberos ticket expiration.
// As long as it is using Hadoop rpc (hdfs://), a relogin will automatically
// occur from the keytab.
if (conf.getBoolean("spark.history.use.kerberos", false)) {
Copy link
Contributor

@pwendell pwendell Apr 24, 2014

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

could this be spark.history.kerberos.enabled to be more consistent with the other on/off options.

// if you have enabled kerberos the following 2 params must be set
val principalName = conf.get("spark.history.kerberos.principal")
val keytabFilename = conf.get("spark.history.kerberos.keytab")
SparkHadoopUtil.get.loginUserFromKeytab(principalName, keytabFilename)
}
}

}


Expand Down
24 changes: 24 additions & 0 deletions docs/monitoring.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -91,6 +91,30 @@ represents an application's event logs. This creates a web interface at
The port to which the web interface of the history server binds.
</td>
</tr>
<tr>
<td>spark.history.use.kerberos</td>
<td>false</td>
<td>
Indicates whether the history server should use kerberos to login. This is useful
if the history server is accessing HDFS files on a secure Hadoop cluster. If this is
true it looks uses the configs <code>spark.history.kerberos.principal</code> and
<code>spark.history.kerberos.keytab</code>.
</td>
</tr>
<tr>
<td>spark.history.kerberos.principal</td>
<td>(none)</td>
<td>
Kerberos principal name for the History Server.
</td>
</tr>
<tr>
<td>spark.history.kerberos.keytab</td>
<td>(none)</td>
<td>
Location of the kerberos keytab file for the History Server.
</td>
</tr>
</table>

Note that in all of these UIs, the tables are sortable by clicking their headers,
Expand Down