Abhey Rana created HADOOP-19308:
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Summary: FastSaslClientFactory failing to initialise due to NPE
Key: HADOOP-19308
URL: https://issues.apache.org/jira/browse/HADOOP-19308
Project: Hadoop Common
Issue Type: Bug
Components: common, security
Affects Versions: 3.3.6, 3.4.0, 3.4.1, 3.4.2
Environment: RHEL9
Reporter: Abhey Rana
Attachments: stacktrace.txt
FastSaslClientFactory is instantiated in both SaslRpcClient and SaslParticipant
as new FastSaslClientFactory(null)
In its constructor FastSaslClientFactory loads all the SaslFactories using
Sasl.getSaslClientFactories();
Then it iterates through all the loaded factories and calls getMechanismNames
method.
The null argument sent in the constructor is sent to the getMechanismNames call.
In some-cases, a loaded factory might not handle this null argument and might
throw a NPE.
This can cause the entire FastSaslClientFactory to not instantiate leading to
failure while instantiation of SaslRpcClient.
Code Pointer -
[https://github.com/apache/hadoop/blob/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/FastSaslClientFactory.java#L43]
Stack Trace -
{code:java}
Cause3: java.lang.ExceptionInInitializerError: Exception
java.lang.NullPointerException [in thread
"ServiceScheduler:GridforceSfdcLogUploaderProcess"] Cause3-StackTrace: at
org.apache.qpid.client.security.amqplain.AmqPlainSaslClientFactory.getMechanismNames(AmqPlainSaslClientFactory.java:50)
at
org.apache.hadoop.security.FastSaslClientFactory.<init>(FastSaslClientFactory.java:47)
at org.apache.hadoop.security.SaslRpcClient.<clinit>(SaslRpcClient.java:106)
at org.apache.hadoop.ipc.Client$Connection.setupSaslConnection(Client.java:559)
at org.apache.hadoop.ipc.Client$Connection.access$2100(Client.java:347) at
org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:783) at
org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:779) at
java.base/java.security.AccessController.doPrivileged(AccessController.java:712)
at java.base/javax.security.auth.Subject.doAs(Subject.java:439) at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1899)
at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:779)
at org.apache.hadoop.ipc.Client$Connection.access$3800(Client.java:347) at
org.apache.hadoop.ipc.Client.getConnection(Client.java:1632) at
org.apache.hadoop.ipc.Client.call(Client.java:1457) at
org.apache.hadoop.ipc.Client.call(Client.java:1410) at
org.apache.hadoop.ipc.ProtobufRpcEngine2$Invoker.invoke(ProtobufRpcEngine2.java:258)
at
org.apache.hadoop.ipc.ProtobufRpcEngine2$Invoker.invoke(ProtobufRpcEngine2.java:139)
at jdk.proxy2/jdk.proxy2.$Proxy1500.getFileInfo(Unknown Source) at
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.lambda$getFileInfo$41(ClientNamenodeProtocolTranslatorPB.java:811)
at
org.apache.hadoop.ipc.internal.ShadedProtobufHelper.ipc(ShadedProtobufHelper.java:160)
at
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:811)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
Method) at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
... 23 shared with parent` {code}
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