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Robert Metzger updated FLINK-9437: ---------------------------------- Component/s: (was: Security) Runtime / Coordination > Revert cypher suite update > -------------------------- > > Key: FLINK-9437 > URL: https://issues.apache.org/jira/browse/FLINK-9437 > Project: Flink > Issue Type: Bug > Components: Runtime / Coordination > Affects Versions: 1.5.0 > Reporter: Till Rohrmann > Assignee: Till Rohrmann > Priority: Blocker > Fix For: 1.5.1 > > > The changes of FLINK-9310 causes Flink to fail when sending data between > {{TaskManagers}} as reported by a user [1]. The problem seems to be that > Netty's {{SslHandler}} (v4.0.27) tries to allocate heap buffers when using a > GCM enabled cypher suite. However, since we explicitly prohibit the > allocation of heap buffers it fails. In later Netty versions, this behaviour > seems to be fixed. > I propose to revert the changes of FLINK-9310 and set the default cypher > algorithm to {{TLS_RSA_WITH_AES_128_CBC_SHA}}. > [1] > http://apache-flink-mailing-list-archive.1008284.n3.nabble.com/Flink-1-5-Job-fails-to-execute-in-multiple-taskmanagers-parallelism-gt-1-td22467.html -- This message was sent by Atlassian JIRA (v7.6.3#76005)