DSplugin psw on read-only replica

I am running a Directory Server 6.3 which is a master to 2 read-only consumers (one is DS 6.3, one is DS 5.2). Replication is working to both consumers.
On the master server, I have ISW for Windows 6.0.
I am able to sync passwords from AD to the master DS. That is working fine. When a user changes their password in AD; then authenticates against the master DS server, the new password is pulled from AD.
I am having trouble when a password is changed on AD and the user tries to authenticate to the read-only replia. They get an Authentication error. I think I have the DS plugin installed on both of my read-only servers. I can not figure out why they won't send the request to the master server to get the password from AD. pswvalidate does get set to True.
My master server has 2 interfaces (master-if1 and master-if2) and the 6.3 readonly replica can only reach master-if2.
# ./idsync printstat -D "cn=Directory Manager" -w secret -s dc=mycompany,dc=org -q anothersecret
Exploring status of connectors, please wait...
Connector ID: CNN100
Type: Sun Java(TM) System Directory
Manages: dc=mycompany,dc=org (ldap://master-if1.mycompany.org:389) (ldap://master-if2.mycompany.org:389)
State: SYNCING
Installed on: master-if.mycompany.org
Plugin SUBC100 is installed on ldap://master-if1.mycompany.org:389
Plugin SUBC101 is installed on ldap://consumer6.3.mycompany.org:389
Connector ID: CNN101
Type: Active Directory
Manages: mcnc.org (ldap://ad1.mycompany.org:389) (ldap://ad2.mycompany.org:389)
State: SYNCING
Installed on: master.mycompany.org
Sun Java(TM) System Message Queue Status: Started
Checking the System Manager status over the Sun Java(TM) System Message Queue.
System Manager Status: Started
SUCCESS
I see no errors in any log files I can find. I can provide more information if needed.
Thanks, Carole

Is there any experience in an environment with a master DS (6.3) server, read-only consumer servers and Identity Synchronization for Windows?
I am not able to get authentication queries to my ro consumers to poll the master DS which in turns pulls the new password from AD.
Thanks, Carole

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Message was edited by sun_iplanet
sun_iplanet
Message was edited by sun_iplanet
sun_iplanet

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          The following are the configuration.
          Two NT servers with WL5.1 sp9 having only EJBs(Read only entity beans)
          One Client with WL5.1 sp9 having servlet/java application as
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          I am trying to make a call like findbyprimarykey in one of the
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                              <res-ref-name>jdbc/wlPool</res-ref-name>
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we are using 5.1
          "Gene Chuang" <[email protected]> wrote in message
          news:[email protected]...
          > Colocation optimization occurs if your client resides in the same
          container (and also in the same
          > EAR for 6.0) as your ejbs.
          >
          > Gene
          >
          > "Suresh" <[email protected]> wrote in message
          news:[email protected]...
          > > Ok....the ejb-call-by-reference set to true is making the call to one
          server
          > > only. i am not sure why it is. I removed the property name and it
          works.
          > > Also I have one question, in our prduct environment, when i cache the
          ejb
          > > home it is not doing the load balancing. can any one help me for that.
          > > thanks
          > >
          > > Mike,
          > > From the sample pgm I sent, even from single client calls get load
          > > balanced.
          > >
          > > Suresh
          > >
          > >
          > > "Gene Chuang" <[email protected]> wrote in message
          > > news:[email protected]...
          > > > In WL, LoadBalancing will ONLY WORK if you reuse your EJBHome! Take
          your
          > > StartEndPointHome lookup
          > > > out of your for loop and see if this fixes your problem.
          > > >
          > > > I've seen this discussion in ejb-interest, and some other vendor
          (Borland,
          > > I believe it is), brings
          > > > up an interesting point: Clustering and LoadBalance is not in the
          J2EE
          > > specs, hence implementation
          > > > is totally up to the vendor. Weblogic loadbalances from the remote
          > > interfaces (EJBObject, EJBHome,
          > > > etc..), while Borland loadbalances from JNDI Context lookup.
          > > >
          > > > Let me suggest a third implmentation: loadbalance from BOTH Context
          > > lookup as well as stub method
          > > > invocation! Or create a smart replica-aware list manager which
          persists
          > > on the client thread
          > > > (ThreadLocal) and is aware of lookup/evocation history. Hence if I do
          the
          > > following in a client
          > > > hitting a 3 node cluster, I'll still get perfect round-robining
          regardless
          > > of what I do on the
          > > > client side:
          > > >
          > > > InitialContext ctxt = new InitialContext();
          > > > EJBHome myHome = ctxt.lookup(MY_BEAN);
          > > > myHome.findByPrimaryKey(pk); <== hits Node #1
          > > > myHome = ctxt.lookup(MY_BEAN);
          > > > myHome.findByPrimaryKey(pk); <== hits Node #2
          > > > myHome.findByPrimaryKey(pk); <== hits Node #3
          > > > myHome = ctxt.lookup(MY_BEAN);
          > > > myHome.findByPrimaryKey(pk); <== hits Node #1
          > > > ...
          > > >
          > > >
          > > > Gene
          > > >
          > > > "Suresh" <[email protected]> wrote in message
          > > news:[email protected]...
          > > > > Mike ,
          > > > >
          > > > > Do you have any reasons for the total number of machines to be 10.
          > > > >
          > > > > I tried with 7 machines.
          > > > >
          > > > >
          > > > > Here is my sample client java application running individual in the
          > > seven
          > > > > machines.
          > > > >
          > > > > StartEndPointHome =
          > > > > (StartEndPointHome)ctx.lookup("dev.StartEndPointHome");
          > > > > for(;;)
          > > > > {
          > > > > // logMsg(" --in loop "+currentTime);
          > > > > if (currentTime > nextRefereshTime)
          > > > > {
          > > > > logMsg("****- going to call");
          > > > > currentTime=getSystemTime();
          > > > > nextRefereshTime=currentTime+timeInterval;
          > > > > StartEndPointHome =
          > > > > (StartEndPointHome)ctx.lookup("dev.StartEndPointHome");
          > > > > long rndno=(long)(Math.random()*10)+range;
          > > > > logMsg(" going to call remotestub"+rndno);
          > > > > retVal =
          > > > >
          > >
          ((StartEndPointHome)getStartHome()).findByNumber("pe"+rndno+"_mportal_dsk36.
          > > > > mportal.com");
          > > > >
          > > > > logMsg("**++- called stub");
          > > > > }
          > > > >
          > > > >
          > > > >
          > > > > The range value is different for each of the machines in the
          cluster.
          > > > >
          > > > > If the first request starts at srv1, all request starts hitting the
          same
          > > > > server.
          > > > > If the first request starts at srv2, all request starts hitting the
          same
          > > > > server.
          > > > >
          > > > > I have the following for the url , user and pwd values for the
          context
          > > .
          > > > >
          > > > > public static String url="t3://10.11.12.14,10.11.12.117:8000";
          > > > > public static String user="guest";
          > > > > public static String password="guest";
          > > > >
          > > > >
          > > > >
          > > > > It would be great if you could help me.
          > > > >
          > > > > Thanks
          > > > > suresh
          > > > >
          > > > >
          > > > > "Mike Reiche" <[email protected]> wrote in message
          > > > > news:[email protected]...
          > > > > >
          > > > > > If you have only one client don't be surprised if you only hit one
          > > server.
          > > > > Try
          > > > > > running ten different clients and see if the hit the same server.
          > > > > >
          > > > > > Mike
          > > > > >
          > > > > >
          > > > > > "suresh" <[email protected]> wrote:
          > > > > > >
          > > > > > >The following are the configuration.
          > > > > > >
          > > > > > > Two NT servers with WL5.1 sp9 having only EJBs(Read only entity
          > > beans)
          > > > > > >
          > > > > > > One Client with WL5.1 sp9 having servlet/java application as
          > > > > > > EJB client.
          > > > > > >
          > > > > > >
          > > > > > >I am trying to make a call like findbyprimarykey in one of the
          > > > > > >entity bean. I could see the request is being directed only to
          the
          > > one
          > > > > > >of the
          > > > > > >server always. When I bring that server, fail over is happening
          to
          > > the
          > > > > > >other server.
          > > > > > >
          > > > > > >
          > > > > > >Here are the settings I have in the ejb-jar.xml :
          > > > > > > <entity>
          > > > > > > <ejb-name>device.StartHome</ejb-name>
          > > > > > > <home>com.wl.api.device.StartHome</home>
          > > > > > > <remote>com.wl.api.device.StartRemote</remote>
          > > > > > > <ejb-class>com.wl.server.device.StartImpl</ejb-class>
          > > > > > > <persistence-type>Bean</persistence-type>
          > > > > > > <prim-key-class>java.lang.Long</prim-key-class>
          > > > > > > <reentrant>False</reentrant>
          > > > > > > <resource-ref>
          > > > > > > <res-ref-name>jdbc/wlPool</res-ref-name>
          > > > > > > <res-type>javax.sql.DataSource</res-type>
          > > > > > > <res-auth>Container</res-auth>
          > > > > > > </resource-ref>
          > > > > > > </entity>
          > > > > > >
          > > > > > >
          > > > > > >Here are the settings I have in the weblogic-ejb-jar.xml.
          > > > > > >
          > > > > > ><weblogic-enterprise-bean>
          > > > > > > <ejb-name>device.StartHome</ejb-name>
          > > > > > >
          > > > > > > <caching-descriptor>
          > > > > > > <max-beans-in-cache>50</max-beans-in-cache>
          > > > > > > <cache-strategy>Read-Only</cache-strategy>
          > > > > > > <read-timeout-seconds>900</read-timeout-seconds>
          > > > > > > </caching-descriptor>
          > > > > > >
          > > > > > > <reference-descriptor>
          > > > > > > <resource-description>
          > > > > > > <res-ref-name>jdbc/wlPool</res-ref-name>
          > > > > > > <jndi-name>weblogic.jdbc.pool.wlPool</jndi-name>
          > > > > > > </resource-description>
          > > > > > > </reference-descriptor>
          > > > > > > <enable-call-by-reference>False</enable-call-by-reference>
          > > > > > > <jndi-name>device.StartHome</jndi-name>
          > > > > > > </weblogic-enterprise-bean>
          > > > > > >
          > > > > > >
          > > > > > >Am I doin any mistake in this?
          > > > > > >
          > > > > > >Any one's help is appreciated.
          > > > > > >Thanks
          > > > > > >Suresh
          > > > > >
          > > > >
          > > > >
          > > >
          > > >
          > >
          > >
          >
          >

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I just took some pictures with my digital camera which use SD cards.
I then took the card out of my camera and put it into the built in SD reader on my 13" MacBook Pro. (same way as I always do)
However, the Finder thinks my card is in "read only mode" as I can not delete or add pictures on the card. I took out the card and toggled the read-only switch thinking maybe it got stuck or something, and tried it again. Still no luck.
Then, I tried a USB card reader. That reader detected the card, and let me read and write to the card.
This is the first time this has ever happened.
Any ideas why the internal card reader wouldn't anything other then read the card while my USB card reader could read and write no problem?
Thanks,
Scott

I reset the PRAM but it did not help.
I think I found the solution though.
It depends on the way you insert the card.
You can't just slide it in. Rather, you have to push it in a special way (which I can't describe or remember)
So I guess the answer is, if the card comes up as read-only, take out the card, and push it in a different way until to comes up correctly.
I replicated this issue twice so that is why I believe it is the alignment that is the problem.
If it gets any worse, I'll probably have to get the slot serviced but considering I only use the slot once a month or so, its not top priority. Too bad I couldn't just have an extra USB port, or an express card slot - but apparently Apple thinks SD cards are more important...

DFSR Read-Only - Problems with Disaster Recovery?

Hi guys,
I have (2) 2008 R2 file servers. One is production and one is for DR. First, I have to make sure that the DR server never writes back to production in any situation. The means that if the (2) servers stop communicating with each other
and data is deleted off the production server, the read-only DR server does not put deleted files back onto the production server when connection is restored, etc. It sounds like I am covered there.
The question is what happens if production server crashes and I now want to change the DR server to production? Does the data on the D/R member still have the same NTFS permissions? It sounds like it does, but would I then just go into dfsmgmt.msc
and mark the replicated folder as read-write, force AD replication, run a dfsrdiag pollad, and then redirect the users to the DR server? I know the content may not be 100%, but the back-up plan has always been to disablestrictnamechecking, change
the host record for the production server to the IP address of the DR server, and redirect users there for 99% of the data. I think that files that were open on the production server that crashed would not have had their updates replicated across.
Let me know if that would work from the DFS side of things
Dan Heim

Hi Dan,
I think this article provided an answer to your question:
Read-Only Replication in R2
http://blogs.technet.com/b/askds/archive/2010/03/08/read-only-replication-in-r2.aspx
An RW replicated folder can be converted to an RO replicated folder (and back) “on the fly”.
Converting will cause a non-authoritative sync to occur on the replicated folder for the server being altered.
If you have any feedback on our support, please send to [email protected]

The options to replicate a secondary read-only copy of a big database with limited network connection?

There is a big database on remote server. A read-only replicate is required on a local server. The data can only be transferred via FTP, etc. It's ok to replicate it once a day.
Logshipping is an option. However, it need to kill all the connections when doing restoring. What's the other options (pros/cons)? How about merge repl or .Net sync framework?

Hi
ydbn,
Do you need to update data on the local server and propagate those changes to remote server? If no, you can use log shipping or transaction replication achieve your requirement. It doesn’t need to kill all the connections if you
clear the Disconnect users in the database when restoring backups check box when configuring log shipping,
With transaction replication, the benefits are as follows.
Synchronization. This method can be used to keep multiple subscribers synchronized in real time.
Scale out. Transactional replication is excellent for scenarios in which read-only data can be scaled
out for reporting purposes or to enable e-commerce scalability (such as providing multiple copies of product catalogs).
There are a few disadvantages of utilizing transaction replication, including:
    • Schema changes/failover. Transactional subscribers require several schema changes that impact foreign keys and impose other constraints.
    • Performance. Large-scale operations or changes at the publisher might require a long time to reach subscribers.
However, if you need to update data on the local server and propagate those changes to remote server, merge replication
is more appropriate, and it comes with the following advantages:
    • Multi-master architecture. Merge replication does allow multiple master databases. These databases can manage their own copies of data and marshal those changes as needed between other members of
a replication topology.
    • Disconnected architecture. Merge replication is natively built to endure periods of no connectivity, meaning that it can send and receive changes after communication is restored.
    • Availability. With effort on the part of the developers, merge-replicated databases can be used to achieve excellent scale-out and redundancy options.
Merge replication comes with some disadvantages, including:
    • Schema changes. Merge replication requires the existence of a specialized GUID column per replicated table.
    • Complexity. Merge replication needs to address the possibility for conflicts and manage operations between multiple subscribers, which makes it harder to manage. For more details, please review this
article.
For the option of sync framework, I would like to recommend you post the question in the Sync Framework forums at
https://social.msdn.microsoft.com/Forums/en-US/home?category=sync . It is appropriate and more experts will assist you. Also you can check this
article about introduction to Sync Framework database synchronization.
Thanks,
Lydia Zhang
If you have any feedback on our support, please click
here.
Lydia Zhang
TechNet Community Support

Iomega external hard drive either 'not found' by Time Machine or is now in 'read only' format

I don't know what's going on with my iomega external hard drive. Sometimes the HD is recognised by the computer; other times it isn't; if it isn't I can restore to an earlier back up via Time Machine app; but it's like the disk isn't writable.
Ten days ago, I had trouble backing up my iMac using Time Machine. After turning it off and restarting my external hard drive, it backed up successfully.
However, today I am trying to back up my files, and TM tells me it can't find the external hard drive. Nothing has changed -- I have been out of town this past week -- but somehow my HD now seems to be in 'read only' format. It does turn on, and I could restore my computer to an earlier back up.
"Mac OS X can't repair the disk. You can still open or copy files on the disk, but you can't save changes to files on the disk. Back up the disk and reformat it as soon as you can."
Annoyingly, despite my HD not showing in Finder or on my Desktop (as it usually does), when I simply turn it off I get that warning message "The disk was not ejected properly".
Have tried verifying and repairing using Disk Utility, to no avail.
Am prompted to reformat but I don't have a good understanding of what this means and how to do it. I'm guessing this would wipe the disk clean and I'd have to create the initial back up image all over again -- I'm reluctant to do this since this HD is my only back up and if it all goes tits up I'll be up that famous creek without a paddle.
Thoughts, suggestions, input all welcome and deeply appreciated -- thank you!

fzgy wrote:
"Mac OS X can't repair the disk. You can still open or copy files on the disk, but you can't save changes to files on the disk. Back up the disk and reformat it as soon as you can."
It's possible a heavy-duty 3rd-party disk repair app can fix it, but they're expensive (DiskWarrior is about $100), and there's no guarantee it can do it.
Am prompted to reformat but I don't have a good understanding of what this means and how to do it.
That will erase it. See Time Machine - Frequently Asked Question #5.
It sounds very much like the disk is beginning to fail, although it's possible there's a bad port, cable, connection or power supply (if it has its own).
I'd suggest getting a new one, and using it for your Time Machine backups; once you have a good backup there, reformat the old one (and select Security Options to write zeros to the whole drive -- if that fails, you know the drive is toast). Use it for secondary backups, per FAQ #27. If it has failed, get a second new one for secondary backups.

DSplugin psw on read-only replica

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