LDAP timeouts and login failures

Detail name	Value
Changelog Number	5773
Type	Bug
Status	Resolved
Affected Versions	EXASOL 6.0.2, EXASOL 6.0.3, EXASOL 6.0.4, EXASOL 6.0.5, EXASOL 6.0.6
Fix Versions	EXASOL 6.0.7
Resolution Date	2018-02-27

Bug

When a user logs in using LDAP authentication sometimes the following EXAoperation warning is generated, even though no network or LDAP server problems occurred:

LDAP bind failed: Error message: Timed out

Usually this only happens sporadically (about once every few hundred logins) and does not cause logins to fail due to an automatic retry. But for some configurations this error occurs more frequently and may even cause logins to fail.

How To Reproduce

Log in using server-side LDAP authentication.

Workaround

In case of failed logins: Retry the login.
Otherwise: Ignore the EXAoperation warning.