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Andrew Kyle Purtell commented on HBASE-24768: --------------------------------------------- If this is going to depend on HADOOP-17159, please be sure to invoke the new UGI method on the HBase side by reflection so the Hadoop side change doesn't introduce a hard dependency on a new method signature. That would violate our runtime/dependency compatibility guidelines outside of a release that explicitly drops support for Hadoop versions (assuming Hadoop releases versions that include HADOOP-17159). If the new method is missing you won't be able to force the relogin. Because you can't depend in this method being there, you'll need a fallback, even if the fallback is only to print a complaint at ERROR or WARN log level. > Clear cached service kerberos ticket in case of SASL failures thrown from > server side > ------------------------------------------------------------------------------------- > > Key: HBASE-24768 > URL: https://issues.apache.org/jira/browse/HBASE-24768 > Project: HBase > Issue Type: Bug > Reporter: Sandeep Guggilam > Assignee: Sandeep Guggilam > Priority: Major > > We setup a SASL connection using different mechanisms like Digest, Kerberos > from master to RS for various activities like region assignment etc. In case > of SASL connect failures, we try to dispose of the SaslRpcClient and try to > relogin from the keytab on the client side. However the relogin from keytab > method doesn't clear off the service ticket cached in memory unless TGT is > about to expire within a timeframe. > This actually causes an issue where there is a keytab refresh that happens > because of expiry on the RS server and throws a SASL connect error when > Master reaches out to the RS server with the cached service ticket that no > longer works with the new refreshed keytab. We might need to clear off the > service ticket cached as there could be a credential refresh on the RS server > side when handling connect failures -- This message was sent by Atlassian Jira (v8.3.4#803005)