Unable to find valid certification path to requested target

[mstrbgn (Rizwan Abbasi)]

I face this issue while send mail using watcher

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:297) ~[?:?]
        at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:434) ~[?:?]
        at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:306) ~[?:?]
        at sun.security.validator.Validator.validate(Validator.java:264) ~[?:?]
        at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:231) ~[?:?]
        at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:132) ~[?:?]
        at org.elasticsearch.common.ssl.DiagnosticTrustManager.checkServerTrusted(DiagnosticTrustManager.java:90) ~[?:?]
        at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(CertificateMessage.java:638) ~[?:?]

[tsullivan (Tim Sullivan)]

Hi, This error says Elasticsearch can't find a certificate file that it is supposed to use. Check your elasticsearch.yml for config settings that point to certificates, and make sure the files have readable permissions by the user controlling the Elasticsearch process.