Oracle ZFS Storage Appliance: Sendmail Service in Maintenance State due to "Restarting too quickly".

Asset ID:	1-72-2058756.1
Update Date:	2016-02-15
Keywords:

Solution Type Problem Resolution Sure

Solution 2058756.1 : Oracle ZFS Storage Appliance: Sendmail Service in Maintenance State due to "Restarting too quickly".

Applies to:

Sun Storage 7410 Unified Storage System - Version All Versions to All Versions [Release All Releases]
Sun ZFS Storage 7120 - Version All Versions to All Versions [Release All Releases]
Sun ZFS Storage 7320 - Version All Versions to All Versions [Release All Releases]
Sun ZFS Storage 7420 - Version All Versions to All Versions [Release All Releases]
Oracle ZFS Storage ZS3-2 - Version All Versions to All Versions [Release All Releases]
7000 Appliance OS (Fishworks)

Symptoms

An alert is generated with the following details:

Suspect 1 of 1 :
   Fault class : defect.sunos.smf.svc.maintenance
   Certainty   : 100%
   Affects     : svc:///network/sendmail-client:default
   Status      : ok and in service

   Resource
     Name             : "svc:///network/sendmail-client:default"
     Status           : repaired

Description : Service svc:/network/sendmail-client:default failed - the
              instance is restarting too quickly.  Refer to
              http://support.oracle.com/msg/SMF-8000-YX for more information.

Response    : The service has been placed into the maintenance state.

Impact      : svc:/network/sendmail-client:default is unavailable.

Cause

The 'sendmail' service can be effected by DNS resolution failure.

Solution

Check the system logs for indication of DNS resolution issues :

e.g.:

Jan 01 00:00:01 ZShostname sendmail[9163]: [ID 702911 mail.warning] gethostbyaddr(10.10.10.10) failed: 1
Jan 01 00:00:01 ZShostname sendmail[9163]: [ID 702911 mail.notice] alias database /var/ak/etc/mail/aliases rebuilt by root

Check resolution of the DNS server :

ZShostname:> configuration services dns get servers
                       servers = 10.10.10.10
ZShostname:> nslookup 10.10.10.10
10.10.10.10  DNSserver.domain

:> nslookup ZShostname
10.10.10.20  ZShostname

If DNS resolution fails, check your configuration, network connectivity or DNS server availability.

If DNS resolves but has failed in the past, mark the service problem as repaired.

Maintenance > Problems

Select the relevant problem for the sendmail-client service failure and click "MARK REPAIRED"

Note: DNS-less operation is not supported on the appliance

For recurring instances of this issue or if the problem is not resolved by following the above procedure, please contact Oracle Support for assistance.

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