Hi Ramkumar, This is being fixed for 1.0.0.
a) Retries will be removed for authentication failures. b) With the current behaviour, retries do add load on the broker as new connections are established for retries. There is a backoff interval between connections to reduce the impact. Regards, Rajini On Fri, Sep 15, 2017 at 3:31 PM, SEMBAIYAN, RAMKUMAR <rs8...@att.com> wrote: > Hi, > > Can you pls let me know if this is resolved or any work around is there. I > am using Kafka 0.11.0.1 version. > > > > a. When incorrect credentials are sent the publisher or consumer > API, logs below warning error , but keeps retrying to broker with out > disconnecting. > > b. We are using kafka as middleware application for multiple pubs and > subs. So if any one use wrong password , the broker will also be busy and > see as performance issue, right? > > > [kafka-producer-network-thread | producer-1] WARN > org.apache.kafka.clients.NetworkClient > - Connection to node -1 terminated during authentication. This may indicate > that authentication failed due to invalid credentials. > [kafka-producer-network-thread | producer-1] WARN > org.apache.kafka.clients.NetworkClient > - Connection to node -1 terminated during authentication. This may indicate > that authentication failed due to invalid credentials. > [kafka-producer-network-thread | producer-1] WARN > org.apache.kafka.clients.NetworkClient > - Connection to node -1 terminated during authentication. This may indicate > that authentication failed due to invalid credentials. > [kafka-producer-network-thread | producer-1] WARN > org.apache.kafka.clients.NetworkClient > - Connection to node -1 terminated during authentication. This may indicate > that authentication failed due to invalid credentials. > [kafka-producer-network-thread | producer-1] WARN > org.apache.kafka.clients.NetworkClient > - Connection to node -1 terminated during authentication. This may indicate > that authentication failed due to invalid credentials. > [kafka-producer-network-thread | producer-1] WARN > org.apache.kafka.clients.NetworkClient > - Connection to node -1 terminated during authentication. This may indicate > that authentication failed due to invalid credentials. > > > > > > Any inputs will be helpful. > > > > Thanks, > > Ramkumar > > > > > > > > On 2017-05-04 07:37, Rajini Sivaram <r...@gmail.com<mailto:r...@gmail.com>> > wrote: > > > Hi all,> > > > > > > I have created a KIP to improve diagnostics for SASL authentication> > > > failures and reduce retries and blocking when authentication fails:> > > > > > > https://cwiki.apache.org/confluence/display/KAFKA/KIP- > 152+-+Improve+diagnostics+for+SASL+authentication+failures> > > > > > > Comments and suggestions are welcome.> > > > > > > Thank you...> > > > > > > Regards,> > > > > > > Rajini> > > > >
