Aki created SPARK-21642:
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Summary: Use FQDN for DRIVER_HOST_ADDRESS instead of ip address
Key: SPARK-21642
URL: https://issues.apache.org/jira/browse/SPARK-21642
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 2.2.0, 2.0.0
Reporter: Aki
In current implementation, ip address of a driver host is set to
DRIVER_HOST_ADDRESS [1]. This becomes a problem when we enable SSL using
"spark.ssl.enabled", "spark.ssl.trustStore" and "spark.ssl.keyStore"
properties. When we configure these properties, spark web ui is launched with
SSL enabled and the HTTPS server is configured with the custom SSL certificate
you configured in these properties.
In this case, client gets javax.net.ssl.SSLPeerUnverifiedException exception
when the client accesses the spark web ui because the client fails to verify
the SSL certificate (Common Name of the SSL cert does not match with
DRIVER_HOST_ADDRESS).
To avoid the exception, we should use FQDN of the driver host for
DRIVER_HOST_ADDRESS.
[1]
https://github.com/apache/spark/blob/master/core/src/main/scala/org/apache/spark/internal/config/package.scala#L222
https://github.com/apache/spark/blob/master/core/src/main/scala/org/apache/spark/util/Utils.scala#L942
Error message that client gets when the client accesses spark web ui:
javax.net.ssl.SSLPeerUnverifiedException: Certificate for <10.102.138.239>
doesn't match any of the subject alternative names: []
$ spark-submit /path/to/jar
..
17/08/04 14:48:07 INFO Utils: Successfully started service 'SparkUI' on port
4040.
17/08/04 14:48:07 INFO SparkUI: Bound SparkUI to 0.0.0.0, and started at
http://10.43.3.8:4040
$ curl -I http://10.43.3.8:4040
HTTP/1.1 302 Found
Date: Fri, 04 Aug 2017 14:48:20 GMT
Location: https://10.43.3.8:4440/
Content-Length: 0
Server: Jetty(9.2.z-SNAPSHOT)
$ curl -v https://10.43.3.8:4440
* Rebuilt URL to: https://10.43.3.8:4440/
* Trying 10.43.3.8...
* TCP_NODELAY set
* Connected to 10.43.3.8 (10.43.3.8) port 4440 (#0)
* Initializing NSS with certpath: sql:/etc/pki/nssdb
* CAfile: /etc/pki/tls/certs/ca-bundle.crt
CApath: none
* Server certificate:
* subject: CN=*.example.com,OU=MyDept,O=MyOrg,L=Area,C=US
* start date: Jun 12 00:05:02 2017 GMT
* expire date: Jun 12 00:05:02 2018 GMT
* common name: *.example.com
* issuer: CN=*.example.com,OU=MyDept,O=MyOrg,L=Area,C=US
* NSS error -8172 (SEC_ERROR_UNTRUSTED_ISSUER)
* Peer's certificate issuer has been marked as not trusted by the user.
* Curl_http_done: called premature == 1
* Closing connection 0
curl: (60) Peer's certificate issuer has been marked as not trusted by the user.
More details here: https://curl.haxx.se/docs/sslcerts.html
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