Re: Unable to promote a replica

Mark Reynolds <mreynolds@xxxxxxxxxx> · Tue, 3 Aug 2021 20:59:11 -0400

On 8/3/21 7:26 PM, John Thurston wrote:
Using that method, I was able to promote my consumer. Thanks again.

Today, I tried (and failed) to disable replication on a consumer. 
Either I don't understand how to disable replication (which is 
entirely possible), or the replication-disabling-function of the 
scripts is also broken.

When done with cockpit, using the red "Disable" button on the 
Replication screen seems to kill the instance of directory without 
affecting its replication status. Replication is still enabled when I 
restart the instance.

Are you saying the server is crashing when trying to disable 
replication?  If it is can you please get a stack trace of the core dump?

https://www.port389.org/docs/389ds/FAQ/faq.html#sts=Debugging%C2%A0Crashes

I was just disabling replication in the UI (which uses dsconf) on 
389-ds-base-2.0.7 as it was fine.  Something must be really off with 
1.4.4 (and you are on the latest version of 1.4.4)  :-(

Mark

When I tried to disable with dsconf, I got similar results. The 
directory stops, but replication is still enabled when I restart it.

I ran:

dsconf -v -D "cn=Directory Manager" ldap://localhost:1389 replication 
disable --suffix o=foo.bar.com

and the instance listening on port 1389 disappeared, and the error log 
contained:

[03/Aug/2021:15:15:24.090599240 -0800] - DEBUG - PBKDF2_SHA256 - 
Comparing password
[03/Aug/2021:15:15:24.136930743 -0800] - DEBUG - replication - 
copy_operation_parameters - replica is null.
[03/Aug/2021:15:15:24.139180666 -0800] - WARN - NSMMReplicationPlugin 
- replica_config_delete - The changelog for replica o=foo.bar.com is 
no longer valid since the replica config is being deleted.  Removing 
the changelog.

and the output of dsconf was:

DEBUG: The 389 Directory Server Configuration Tool
DEBUG: Inspired by works of: ITS, The University of Adelaide
DEBUG: dsrc path: /root/.dsrc
DEBUG: dsrc container path: /data/config/container.inf
DEBUG: dsrc instances: []
DEBUG: dsrc no such section: slapd-ldap://localhost:1389
DEBUG: Called with: Namespace(basedn=None, binddn='cn=Directory 
Manager', bindpw=None, func=<function disable_replication at 
0x7f1b96485a60>, instance='ldap://localhost:1389', json=False, 
prompt=False, pwdfile=None, starttls=False, suffix='o=foo.bar.com', 
verbose=True)
DEBUG: Instance details: {'uri': 'ldap://localhost:1389', 'basedn': 
None, 'binddn': 'cn=Directory Manager', 'bindpw': None, 'saslmech': 
None, 'tls_cacertdir': None, 'tls_cert': None, 'tls_key': None, 
'tls_reqcert': None, 'starttls': False, 'prompt': False, 'pwdfile': 
None, 'args': {'ldapurl': 'ldap://localhost:1389', 'root-dn': 
'cn=Directory Manager'}}
DEBUG: SER_SERVERID_PROP not provided, assuming non-local instance
DEBUG: Allocate <class 'lib389.DirSrv'> with ldap://localhost:1389
DEBUG: Allocate <class 'lib389.DirSrv'> with server1.foo.bar.com:389
DEBUG: Allocate <class 'lib389.DirSrv'> with server1.foo.bar.com:389
Enter password for cn=Directory Manager on ldap://localhost:1389:
DEBUG: SER_SERVERID_PROP not provided, assuming non-local instance
DEBUG: Allocate <class 'lib389.DirSrv'> with ldap://localhost:1389
DEBUG: Allocate <class 'lib389.DirSrv'> with server1.foo.bar.com:389
DEBUG: Allocate <class 'lib389.DirSrv'> with server1.foo.bar.com:389
DEBUG: open(): Connecting to uri ldap://localhost:1389
DEBUG: Using dirsrv ca certificate /etc/dirsrv/slapd-{instance_name}
DEBUG: Using external ca certificate /etc/dirsrv/slapd-{instance_name}
DEBUG: Using external ca certificate /etc/dirsrv/slapd-{instance_name}
DEBUG: Using /etc/openldap/ldap.conf certificate policy
DEBUG: ldap.OPT_X_TLS_REQUIRE_CERT = 2
DEBUG: open(): bound as cn=Directory Manager
DEBUG: Retrieving entry with [('',)]
DEBUG: Retrieved entry [dn:
vendorVersion: 389-Directory/1.4.4.16 B2021.175.1723

]
DEBUG: _gen_selector filter = 
(&(&(objectclass=nsds5Replica))(|(nsDS5ReplicaRoot=o=foo.bar.com)))
DEBUG: cn=replica,cn=o\3Dfoo.bar.com,cn=mapping tree,cn=config 
getVal('nsDS5ReplicaRoot')
DEBUG: list filter = (&(objectclass=nsds5replicationagreement))
DEBUG: list filter = (&(objectclass=nsDSWindowsReplicationAgreement))
DEBUG: cn=replica,cn=o\3Dfoo.bar.com,cn=mapping tree,cn=config delete
DEBUG: {'result': -1, 'desc': "Can't contact LDAP server", 'ctrls': []}
Traceback (most recent call last):
  File "/sbin/dsconf", line 134, in <module>
    result = args.func(inst, None, log, args)
  File 
"/usr/lib/python3.6/site-packages/lib389/cli_conf/replication.py", 
line 236, in disable_replication
    replica.delete()
  File "/usr/lib/python3.6/site-packages/lib389/replica.py", line 
1351, in delete
    return super(Replica, self).delete()
  File "/usr/lib/python3.6/site-packages/lib389/_mapped_object.py", 
line 825, in delete
    self._instance.delete_ext_s(self._dn, 
serverctrls=self._server_controls, clientctrls=self._client_controls, 
escapehatch='i am sure')
  File "/usr/lib/python3.6/site-packages/lib389/__init__.py", line 
173, in inner
    return f(*args, **kwargs)
  File "/usr/lib64/python3.6/site-packages/ldap/ldapobject.py", line 
562, in delete_ext_s
    resp_type, resp_data, resp_msgid, resp_ctrls = 
self.result3(msgid,all=1,timeout=self.timeout)
  File "/usr/lib/python3.6/site-packages/lib389/__init__.py", line 
173, in inner
    return f(*args, **kwargs)
  File "/usr/lib64/python3.6/site-packages/ldap/ldapobject.py", line 
767, in result3
    resp_ctrl_classes=resp_ctrl_classes
  File "/usr/lib/python3.6/site-packages/lib389/__init__.py", line 
173, in inner
    return f(*args, **kwargs)
  File "/usr/lib64/python3.6/site-packages/ldap/ldapobject.py", line 
774, in result4
    ldap_result = 
self._ldap_call(self._l.result4,msgid,all,timeout,add_ctrls,add_intermediates,add_extop)
  File "/usr/lib/python3.6/site-packages/lib389/__init__.py", line 
173, in inner
    return f(*args, **kwargs)
  File "/usr/lib64/python3.6/site-packages/ldap/ldapobject.py", line 
340, in _ldap_call
    reraise(exc_type, exc_value, exc_traceback)
  File "/usr/lib64/python3.6/site-packages/ldap/compat.py", line 46, 
in reraise
    raise exc_value
  File "/usr/lib64/python3.6/site-packages/ldap/ldapobject.py", line 
324, in _ldap_call
    result = func(*args,**kwargs)
ldap.SERVER_DOWN: {'result': -1, 'desc': "Can't contact LDAP server", 
'ctrls': []}
ERROR: Error: -1 - Can't contact LDAP server - []

--
Do things because you should, not just because you can.

John Thurston    907-465-8591
John.Thurston@xxxxxxxxxx
Department of Administration
State of Alaska

On 8/2/2021 3:35 PM, Mark Reynolds wrote:
Looks like there might be some patch missing on the 1.4.4 branch because
dsconf should not be trying to create the changelog.
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