Hi User,
I am seeing NullPointerException when doing sasalTransport.open(). The
relevent code and stackTrace is shown below:
final TSaslClientTransport sasalTransport = new
TSaslClientTransport("GSSAPI", principal, serviceName, serverHost, props,
(CallbackHandler)null, transport);
try {
Subject.doAs(subject, new PrivilegedExceptionAction() {
public Void run() {
try {
KerberosSaslTransportPlugin.LOG.debug("do as:" + principal);
sasalTransport.open();
} catch (Exception var2) {
KerberosSaslTransportPlugin.LOG.error("*Client failed to
open SaslClientTransport to interact with a server during session
initiation: " + var2, var2*);
}
return null;
}
});
return sasalTransport;
} catch (PrivilegedActionException var11) {
throw new RuntimeException(var11);
}
*This is manifestation of when the NPE happened and subsequently use that
handle to execute command.*
2015-12-29 00:50:44.946 c.y.s.i.c.ImageDrpcScorer [ERROR] DRPC client
execute error {}
org.apache.thrift7.transport.TTransportException: SASL authentication not
complete
at
org.apache.thrift7.transport.TSaslTransport.write(TSaslTransport.java:474)
~[storm-core-0.10.1.y.jar:0.10.1.y]
at
org.apache.thrift7.transport.TSaslClientTransport.write(TSaslClientTransport.java:37)
~[storm-core-0.10.1.y.jar:0.10.1.y]
at
org.apache.thrift7.protocol.TBinaryProtocol.writeI32(TBinaryProtocol.java:178)
~[storm-core-0.10.1.y.jar:0.10.1.y]
at
org.apache.thrift7.protocol.TBinaryProtocol.writeMessageBegin(TBinaryProtocol.java:106)
~[storm-core-0.10.1.y.jar:0.10.1.y]
at
org.apache.thrift7.TServiceClient.sendBase(TServiceClient.java:62)
~[storm-core-0.10.1.y.jar:0.10.1.y]
at
backtype.storm.generated.DistributedRPC$Client.send_execute(DistributedRPC.java:100)
~[storm-core-0.10.1.y.jar:0.10.1.y]
at
backtype.storm.generated.DistributedRPC$Client.execute(DistributedRPC.java:91)
~[storm-core-0.10.1.y.jar:0.10.1.y]
at backtype.storm.utils.DRPCClient.execute(DRPCClient.java:59)
~[storm-core-0.10.1.y.jar:0.10.1.y]
at
com.yahoo.sieve.images.classifier.ImageDrpcScorer.lambda$service$10(ImageDrpcScorer.java:58)
[stormjar.jar:?]
at
com.yahoo.sieve.images.classifier.ImageDrpcScorer$$Lambda$68/1543985518.apply(Unknown
Source) [stormjar.jar:?]
at
java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
[?:1.8.0_40]
at
java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1374)
[?:1.8.0_40]
at
java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:512)
[?:1.8.0_40]
at
java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:502)
[?:1.8.0_40]
at
java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
[?:1.8.0_40]
at
java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
[?:1.8.0_40]
at
java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
[?:1.8.0_40]
at
com.yahoo.sieve.images.classifier.ImageDrpcScorer.service(ImageDrpcScorer.java:71)
[stormjar.jar:?]
at
com.yahoo.sieve.images.ImageWorker.lambda$null$5(ImageWorker.java:576)
[stormjar.jar:?]
at
com.yahoo.sieve.images.ImageWorker$$Lambda$67/1256770100.get(Unknown
Source) [stormjar.jar:?]
at
java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1582)
[?:1.8.0_40]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
[?:1.8.0_40]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
[?:1.8.0_40]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_40]
*This is when a handle executes exceptionally, I respawn to refilled the
pool of connections and it is when the NPE happen:*
2015-12-29 00:50:44.947 c.y.s.i.c.DRPCClientPool [INFO] DRPCCLient
encountered exception re-spawn new connection
2015-12-29 00:50:44.947 b.s.s.a.k.*KerberosSaslTransportPlugin* [DEBUG]
Found a cached Login item with key string: serviceNamegstorm
2015-12-29 00:50:44.947 b.s.s.a.k.*KerberosSaslTransportPlugin* [DEBUG]
SASL GSSAPI client transport is being established
2015-12-29 00:50:44.947 b.s.s.a.k.*KerberosSaslTransportPlugin* [DEBUG] do
as:[email protected]
2015-12-29 00:50:44.948 o.a.t.t.*TSaslTransport* [DEBUG] opening transport
org.apache.thrift7.transport.TSaslClientTransport@388960c3
2015-12-29 00:50:44.948 b.s.s.a.k.*KerberosSaslTransportPlugin* [ERROR] *Client
failed to open SaslClientTransport to interact with a server during session
initiation: java.lang.NullPointerException* java.lang.NullPointerException
Please advise
Thanks
Patrick
