Troubleshooting
Problem
Simple rest api call is failing the SSL hansdhake,
Symptom
Failure seen in job log when -Djavax.net.debug=SSL has been specified in the stage optional java options, to produce extra handsake logging details.
Extension ec_point_formats, formats: [uncompressed]
Extension signature_algorithms, signature_algorithms: SHA512withECDSA, SHA512withRSA, SHA384withECDSA, SHA384withRSA, SHA256withECDSA, SHA256withRSA, SHA224withECDSA, SHA224withRSA, SHA1withECDSA, SHA1withRSA, SHA256withDSA, SHA1withDSA
***
pool-1-thread-1, WRITE: TLSv1.2 Handshake, length = 153
pool-1-thread-1, READ: TLSv1.2 Alert, length = 2
pool-1-thread-1, RECV TLSv1 ALERT: fatal, handshake_failure
pool-1-thread-1, called closeSocket()
pool-1-thread-1, handling exception: javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure
pool-1-thread-1, called close()
pool-1-thread-1, called closeInternal(true)
If the SNI extension option is being used the following would be seen
Extension ec_point_formats, formats: [uncompressed]
Extension signature_algorithms, signature_algorithms: SHA512withECDSA, SHA512withRSA, SHA384withECDSA, SHA384withRSA, SHA256withECDSA, SHA256withRSA, SHA224withECDSA, SHA224withRSA, SHA1withECDSA, SHA1withRSA, SHA256withDSA, SHA1withDSA
Extension server_name, server_name: [host_name: myserver.com.au]
***
[{"Product":{"code":"SSVSEF","label":"IBM InfoSphere DataStage"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":"Not Applicable","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"}],"Version":"11.5;11.3;11.7","Edition":"","Line of Business":{"code":"LOB76","label":"Data Platform"}}]
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Document Information
Modified date:
25 April 2025
UID
swg22013800