[KUDU-2387] exportAuthenticationCredentials does not retry connectToCluster

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.7.0
• Fix Version/s: 1.9.0
• Component/s: java
• Target Version/s: 1.8.0
• Code Review: https://gerrit.cloudera.org/c/12099/
• Assignee: Adar Dembo
• Reporter: Todd Lipcon
• Created: 28/Mar/18 18:24
• Updated: 20/Dec/18 22:17
• Resolved: 20/Dec/18 22:17

Description

TestSecurity has the following TODO:

    // TODO(todd): it seems that exportAuthenticationCredentials() doesn't properly retry
    // in the case that there is no leader, even though NoLeaderFoundException is a RecoverableException.
    // So, we have to use a hack of calling listTabletServers, which _does_ properly retry,
    // in order to wait for the masters to elect a leader.

It seems like this causes occasional failures of tests like KuduRDDTest – I saw a case where the client failed to connect due to a negotiation timeout, and then didn't retry at all. It's not clear why the 3-second negotiation timeout was insufficient in this test case but likely just machine load or somesuch.

Issue Links

• is duplicated by: KUDU-2219 org.apache.kudu.client.TestKuduClient.testCloseShortlyAfterOpen flaky