https://community.cloudera.com/t5/Support-Questions/PKIX-path-building-failed-unable-to-find-valid-certification/m-p/222634#M184504 <P>Hi Team,</P><P>When I'm trying put a file in S3 through Nifi Web UI, getting below error. </P><P>Whether through Aws CLI, I can copy files to S3 from Nifi servers.</P><P> I have updated the cacerts file in below paths</P><P>/usr/jdk64/jdk1.8.0_112/jre/lib/security/cacerts</P><P>/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre/lib/security/cacerts</P><P></P><PRE>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) ... 50 common frames omitted 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) ... 56 common frames omitted 2018-04-17 01:33:54,624 ERROR [Timer-Driven Process Thread-3] o.a.nifi.processors.aws.s3.PutS3Object PutS3Object[id=9d2034-02b3e9b22] Error checking S3 Multipart Upload list for non-prod-on-prem-dropoff: Unable to execute HTTP request: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target 2018-04-17 01:33:54,694 ERROR [Timer-Driven Process Thread-3] o.a.nifi.processors.aws.s3.PutS3Object PutS3Object[id=9d202b3e9b22] Failed to put StandardFlowFileRecord[uuid=be294f52-c,claim=StandardContentClaim [resourceClaim=StandardResourceClaim[id=1523871738280-1, container=default, section=1], offset=50440, length=10088],offset=0,name=test3,size=10088] to Amazon S3 due to com.amazonaws.SdkClientException: Unable to execute HTTP request: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target: {} com.amazonaws.SdkClientException: Unable to execute HTTP request: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target. </PRE><BR /><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="70390-cert-ssl-error.png" style="width: 405px;"><img src="https://community.cloudera.com/t5/image/serverpage/image-id/15676i98E6D57ECEAA4610/image-size/medium?v=v2&amp;px=400" role="button" title="70390-cert-ssl-error.png" alt="70390-cert-ssl-error.png" /></span></P> Sun, 18 Aug 2019 02:04:17 GMT suraj_lawand 2019-08-18T02:04:17Z