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SSL error "elliptic curve routines" seen in opscenterd.log

Summary

A SSL error seen caused by an out of date openssl package

Symptoms

The following error is seen in the opscenterd.log

2015-02-16 11:17:45+0000 [McCluster] Thrift pool connection to <CassandraNode 192.168.56.23:9160 @0x19d4b00> failed
Traceback (most recent call last):
Failure: thrift.transport.TTransport.TTransportException: Connection closed ([Failure instance: Traceback (failure with no frames): <class 'OpenSSL.SSL.Error'>: [('elliptic curve routines', 'EC_GROUP_new_by_curve_name', 'unknown group'), ('SSL r
outines', 'SSL3_GET_KEY_EXCHANGE', 'EC lib')]
])

Cause

The openssl package on the opscenter machine needed updating

Solution

A simple package manager upgrade will solve the problem. (i.e. sudo yum upgrade)

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