wso2: Error while accessing backend services for API key validation - wso2

Question

Stacktrace for the error:
TID: [-1234] [] [2016-12-15 10:49:13,893] WARN {org.wso2.carbon.apimgt.gateway.handlers.security.thrift.ThriftKeyValidatorClient} - Login failed.. Authenticating again.. {org.wso2.carbon.apimgt.gateway.handlers.security.thrift.ThriftKeyValidatorClient}
TID: [-1234] [] [2016-12-15 10:49:13,943] WARN {org.wso2.carbon.apimgt.gateway.handlers.security.APIAuthenticationHandler} - API authentication failure due to Unclassified Authentication Failure {org.wso2.carbon.apimgt.gateway.handlers.security.APIAuthenticationHandler}
TID: [-1234] [] [2016-12-15 10:49:13,943] ERROR {org.wso2.carbon.apimgt.gateway.handlers.security.APIAuthenticationHandler} - API authentication failed with error 900900 {org.wso2.carbon.apimgt.gateway.handlers.security.APIAuthenticationHandler}
org.wso2.carbon.apimgt.gateway.handlers.security.APISecurityException: Error while accessing backend services for API key validation
at org.wso2.carbon.apimgt.gateway.handlers.security.thrift.ThriftAPIDataStore.getAllURITemplates(ThriftAPIDataStore.java:76)
at org.wso2.carbon.apimgt.gateway.handlers.security.APIKeyValidator.getAllURITemplates(APIKeyValidator.java:635)
at org.wso2.carbon.apimgt.gateway.handlers.security.APIKeyValidator.doGetAPIInfo(APIKeyValidator.java:487)
at org.wso2.carbon.apimgt.gateway.handlers.security.APIKeyValidator.findMatchingVerb(APIKeyValidator.java:459)
at org.wso2.carbon.apimgt.gateway.handlers.security.APIKeyValidator.getResourceAuthenticationScheme(APIKeyValidator.java:251)
at org.wso2.carbon.apimgt.gateway.handlers.security.oauth.OAuthAuthenticator.authenticate(OAuthAuthenticator.java:119)
at org.wso2.carbon.apimgt.gateway.handlers.security.APIAuthenticationHandler.handleRequest(APIAuthenticationHandler.java:117)
at org.apache.synapse.rest.API.process(API.java:325)
at org.apache.synapse.rest.RESTRequestHandler.dispatchToAPI(RESTRequestHandler.java:90)
at org.apache.synapse.rest.RESTRequestHandler.process(RESTRequestHandler.java:69)
at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:300)
at org.apache.synapse.core.axis2.SynapseMessageReceiver.receive(SynapseMessageReceiver.java:75)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180)
at org.apache.synapse.transport.passthru.ServerWorker.processNonEntityEnclosingRESTHandler(ServerWorker.java:319)
at org.apache.synapse.transport.passthru.ServerWorker.run(ServerWorker.java:152)
at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.wso2.carbon.apimgt.gateway.handlers.security.APISecurityException: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at org.wso2.carbon.apimgt.gateway.handlers.security.thrift.ThriftKeyValidatorClient.getAllURITemplates(ThriftKeyValidatorClient.java:144)
at org.wso2.carbon.apimgt.gateway.handlers.security.thrift.ThriftAPIDataStore.getAllURITemplates(ThriftAPIDataStore.java:74)
... 18 more
Caused by: org.apache.thrift.transport.TTransportException: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at org.apache.thrift.transport.TIOStreamTransport.flush(TIOStreamTransport.java:161)
at org.apache.thrift.TServiceClient.sendBase(TServiceClient.java:65)
at org.wso2.carbon.apimgt.impl.generated.thrift.APIKeyValidationService$Client.send_getAllURITemplates(APIKeyValidationService.java:116)
at org.wso2.carbon.apimgt.impl.generated.thrift.APIKeyValidationService$Client.getAllURITemplates(APIKeyValidationService.java:106)
at org.wso2.carbon.apimgt.gateway.handlers.security.thrift.ThriftKeyValidatorClient.getAllURITemplates(ThriftKeyValidatorClient.java:141)
... 19 more
Caused by: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1949)
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:302)
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:296)
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1509)
at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216)
at sun.security.ssl.Handshaker.processLoop(Handshaker.java:979)
at sun.security.ssl.Handshaker.process_record(Handshaker.java:914)
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)
at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:747)
at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:123)
at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
at org.apache.thrift.transport.TIOStreamTransport.flush(TIOStreamTransport.java:159)
... 23 more
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:387)
at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292)
at sun.security.validator.Validator.validate(Validator.java:260)
at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:324)
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:229)
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124)
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1491)
... 33 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141)
at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:126)
at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:280)
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:382)
Please let me know if any other configs are required for understanding.
Currently i am doing distributed set up of wso2 apimanager with keymanager, database at one node, gateway at another and store, publisher at third node.

Answer 1

Key manager's Public certificate should be installed to gateway's client-truststore.jks which is located in <GW_HOME>/repository/resources/security/