[Freeipa-users] Still not working -- Re: What to do next???: IPA replica host entry is removed on web UI by mistake
David Copperfield
cao2dan at yahoo.com
Wed May 16 21:54:40 UTC 2012
Sorry to declare success too quick, :( In fact, it is worse now, the IPA master fail after performing the above steps including the RUV cleaning. I've only one working replica and I'm afraid to do anything on it.
On The IPA master, after I ran 'service ipa restart' it reported OK, but 'ipa user-find' failed. so I cleared my Kerboers TGT ticket, ran 'kinit admin' to try my luck, the IPA master failed with the following message, it showed that 389 port listening disappeared for unknown reasons.
[root at ipamaster slapd-EXAMPLE-COM]# kinit admin
kinit: Generic error (see e-text) while getting initial credentials
[root at ipamaster slapd-EXAMPLE-COM]# netstat -antup | grep -i LISTEN | grep ns
tcp 0 0 :::7389 :::* LISTEN 6550/ns-slapd
tcp 0 0 :::7390 :::* LISTEN 6550/ns-slapd
[root at ipamaster slapd-EXAMPLE-COM]#
The error logs are pasted here too.
[16/May/2012:14:41:43 -0700] set_krb5_creds - Could not get initial credentials for principal [ldap/ipamaster.example.com at EXAMPLE.COM] in keytab [WRFILE:/etc/dirsrv/ds.keytab]: -1765328228 (Cannot contact any KDC for requested realm)
[16/May/2012:14:41:43 -0700] - slapd started. Listening on All Interfaces port 389 for LDAP requests
[16/May/2012:14:41:43 -0700] - Listening on All Interfaces port 636 for LDAPS requests
[16/May/2012:14:41:43 -0700] - Listening on /var/run/slapd-EXAMPLE-COM.socket for LDAPI requests
[16/May/2012:14:41:43 -0700] slapd_ldap_sasl_interactive_bind - Error: could not perform interactive bind for id [] mech [GSSAPI]: error -2 (Local error) (SASL(-1): generic failure: GSSAPI Error: Unspecified GSS failure. Minor code may provide more information (Credentials cache file '/tmp/krb5cc_496' not found))
[16/May/2012:14:41:43 -0700] slapi_ldap_bind - Error: could not perform interactive bind for id [] mech [GSSAPI]: error -2 (Local error)
[16/May/2012:14:41:43 -0700] NSMMReplicationPlugin - agmt="cn=meToipareplica01.example.com" (ipareplica01:389): Replication bind with GSSAPI auth failed: LDAP error -2 (Local error) (SASL(-1): generic failure: GSSAPI Error: Unspecified GSS failure. Minor code may provide more information (Credentials cache file '/tmp/krb5cc_496' not found))
[16/May/2012:14:41:46 -0700] NSMMReplicationPlugin - agmt="cn=meToipareplica01.example.com" (ipareplica01:389): Replication bind with GSSAPI auth resumed
Thanks.
--David
________________________________
From: David Copperfield <cao2dan at yahoo.com>
To: JR Aquino <JR.Aquino at citrix.com>
Cc: "freeipa-users at redhat.com" <freeipa-users at redhat.com>
Sent: Wednesday, May 16, 2012 1:23 PM
Subject: Re: [Freeipa-users] What to do next???: IPA replica host entry is removed on web UI by mistake
Hi JR,
Thanks a lot! It works perfectly.
The only extra thing probably goes with 2.1.3 only: I need to find and clear ghost RUV records for CA database, and remove it from master and all other live replicas as well.
BTW, on 2.2.0 the two database backends still are separate, or merged into one?
Thanks.
--David
________________________________
From: JR Aquino <JR.Aquino at citrix.com>
To: David Copperfield <cao2dan at yahoo.com>
Cc: FreeIPAUsers <freeipa-users at redhat.com>
Sent: Wednesday, May 16, 2012 12:57 PM
Subject: Re: [Freeipa-users] What to do next???: IPA replica host entry is removed on web UI by mistake
On May 16, 2012, at 12:23 PM, David Copperfield wrote:
> Hi all,
>
> I accidentally removed one of my IPA replica host on IPA web UI by mistake, on the host list I planed to remove ipaclient02.example.com, but accidentally the mouse moved to ipareplica02.example.com and the latter got removed without a prompt.
>
> I realized the mistake and tried to recover from this disaster but it was already too late, the change propagated to all the replicas and the poor ipareplica02 now stops functioning.
>
> [root at ipareplica02 slapd-EXAMPLE-COM]# ipa service-find
> ipa: ERROR: cannot connect to u'https://ipareplica02.qe9.jigsaw.com/ipa/xml': Internal Server Error
> [root at ipareplica02 slapd-EXAMPLE-COM]#
ipa user-find
> ipa: ERROR: cannot connect to u'https://ipareplica02.qe9.jigsaw.com/ipa/xml': Internal Server Error
> [root at ipareplica02 slapd-EXAMPLE-COM]# ipa host-find
> ipa: ERROR: cannot connect to u'https://ipareplica02.qe9.jigsaw.com/ipa/xml': Internal Server Error
> [root at ipareplica02 slapd-EXAMPLE-COM]#
>
> On the IPA master, It was found that ipareplica02 didn't show up in 'host-find' list or 'service-find' list. Though it still showed in the master list reported by 'ipa-replica-manage' and 'ipa-csreplica-manage', the real command 'ipa-replica-manage list ipareplica02' fails with LDAP could't reach error.
>
> What should I do now? Is there are any other ways to recover besides uninstall and reinstall of IPA replica ipareplica02?
>
> BTW, it will be more than appreciated if the web UI could pop up a warning prompt when removing host/services entries associated with IPA masters and IPA replicas.
Been there... Done that... The bug is fixed in 2.2... It will prompt and prevent you from deleting a replica host if there is an agreement.
To clean up...
0. On the master replica: ipa-replica-manage del ipareplica02.example.com --force
-This will delete the replica agreement for the host.
1. $ ldapsearch -xLLL -D "cn=directory manager" -W -b dc=example,dc=com \
'(&(nsuniqueid=ffffffff-ffffffff-ffffffff-ffffffff)(objectclass=nstombstone))'
Look for your your nsds50ruv that matches your ghost replica.
2. Create an ldif following the directions here: http://directory.fedoraproject.org/wiki/Howto:CLEANRUV
Something like:
$ cat cleanup.ldif
dn: cn=replica,cn=dc\3Dexample\2Cdc\3Dcom,cn=mapping
tree,cn=config
changetype: modify
replace: nsds5task
nsds5task: CLEANRUV## <- ## == The ReplicaID number for the ghost replica.
3. Run on all of the remaining replicas: ldapmodify -x -D "cn=directory manager" -W -f fixed.ldif
- This removes the ghost entry.
4. on the broken replica: ipa-server-install --uninstall
5. Follow the normal directions for 'installing a replica'
- on master: ipa-replica-prepare ipareplica02.example.com
- scp /path/to/ipareplica02.example.com.gpg ipareplica02.example.com: ipareplica02.example.com.gpg
- on replica: ipa-replica-install ipareplica02.example.com --whatever_options_you_used_previously
6. Check to make sure the server was built correctly and command work as expected: kinit admin, ipa user-find, ipa host-find, id admin, etc etc
7. Sigh and drink coffee
> Thanks.
>
> --David
> From: Rich Megginson <rmeggins at redhat.com>
> To: Ben Ho <ben13ho at hotmail.com>
> Cc: freeipa-users at redhat.com
> Sent: Tuesday, May 15, 2012 5:33 PM
> Subject: Re: [Freeipa-users] Help with ipa-replica-manage
>
> On 05/15/2012 02:49 PM, Ben Ho wrote:
>> This is the information I retrieved about my server.
>>
>> ipa-server-selinux-2.1.3-9.el6.x86_64
>> ipa-client-2.1.3-9.el6.x86_64
>> ipa-server-2.1.3-9.el6.x86_64
>> CentOS release 6.2
>> 389-ds-base-1.2.9.14-1.el6_2.2.x86_64
>>
>> Thanks again.
>
> Is replication otherwise working?
>
>>
>> -Ben
>>
>> Date: Tue, 15 May 2012 13:15:46 -0600
>> From: rmeggins at redhat.com
>> To: ben13ho at hotmail.com
>> CC: freeipa-users at redhat.com
>> Subject: Re: [Freeipa-users] Help with ipa-replica-manage
>>
>> On 05/15/2012 01:00 PM, Ben Ho wrote:
>> Hello,
>> I am pretty new to IPA. Right now I have three servers that are running IPA. I am trying to replicate one server to two other servers. I use this command:
>>
>> ipa-replica-manage re-initialize --from example2.edu
>>
>> On the first server I need to replicate, it works
fine. However, on the second server I get this message in my log files. The errors get printed out once every 1 to 5 minutes.
>>
>> [15/May/2012:14:22:43 -0400] NSMMReplicationPlugin - agmt="cn=meToexample1.edu" (example1:389): Schema replication update failed: Type or value exists
>> [15/May/2012:14:22:43 -0400] NSMMReplicationPlugin - agmt="cn=meToexample1.edu" (example1:389): Warning: unable to replicate schema: rc=1
>> [15/May/2012:14:22:47 -0400] NSMMReplicationPlugin - agmt="cn=meToexample2.edu" (example2:389): Schema replication update failed: Type or value exists
>> [15/May/2012:14:22:47 -0400] NSMMReplicationPlugin - agmt="cn=meToexample2.edu" (example2:389): Warning: unable to replicate schema: rc=1
>>
>>
>> Again, I am pretty new to this, so any help or tips would be appreciated.
>>
>> What platform and what version of 389-ds-base
and ipa-server for all of your servers?
>>
>>
>> Thanks!
>>
>> -Ben
>>
>>
>>
>> _______________________________________________
>> Freeipa-users mailing list
>>
>> Freeipa-users at redhat.com
>> https://www.redhat.com/mailman/listinfo/freeipa-users
>>
>
>
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