Replication is the process of sharing information so as to ensure consistency between redundant resources, such as software or hardware components, to improve reliability, fault-tolerance, or accessibility. It could be data replication if the same data is stored on multiple storage devices, or ...
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1answer
13 views
Copy two remote folder into one local folder
I try to merge two folder (from remote Server) into one local directory. It is a deployment issue, on one Server there are two folders \server1\folder1 and \server1\folder2, now i try to merge both ...
0
votes
1answer
19 views
How many mongod instances should I run with a 2 server replicaset setup?
Currently I've got server A and server B running with the following mongod instances:
Server A
mongod server (usually PRIMARY)
mongod arbiter
Server B
mongod server (usually SECONDARY)
When ...
2
votes
4answers
54 views
How can I rebuilt MySQL replication without dumping the master?
Our MySQL database has grown fairly large, and I am running with master replication. Replication is broken. I am trying to rebuild the second master without freezing up the first master in doing a ...
1
vote
2answers
32 views
Possible to regularly export MS-SQL tables to another DB format on Linux without complete dumps?
We have a production server running SQL-Server, which holds our backend data, e.g., customer information, sales invoices etc. The nature of this data is that "old" data can change, e.g., a customer ...
0
votes
0answers
17 views
What does “DFSR Backlog Count” represent?
What does "DFSR Backlog Count" represent? Is it simply the version difference between two members of a replication group or is it the actual count of files that need to be updated? I haven't pinned ...
3
votes
1answer
49 views
How to monitor DFSR backlog more efficiently than dfsrdiag
Is there a way to monitor the DFSR backlog in a manner more efficient than using dfsrdiag.exe backlog?
I wrote a program that just slurps in the backlog count via dfsrdiag.exe backlog /smem:alpha ...
2
votes
1answer
43 views
raid with replication
We are planning to buy two servers which will going to host an SQL database(PostgreSQL). The second server will work as a live replication of the first database server (hot standby). The question I'm ...
0
votes
0answers
29 views
ShadowProtect and Image Replication with ShadowStream
I'm not sure if anyone here has made any real use of ShadowProtect software, more specifically, the ShadowStream server that can be used to replicate images and incremental s over the web to your ...
0
votes
1answer
42 views
Active Directory Cross-Site Replication Speed - Should I select Preferred Bridgehead Servers?
I have 2 sites. Site1 with 2 DCs and Site2 with 1 DC.
If I create a new user on Site1 the 2 DCs replicate the user instantly.
The Site2 DC doesn't get the new user replicated to it until some time ...
0
votes
0answers
20 views
PostgreSQL 1 master, multiple slave replication over slow links
I have a current use case in which remote computers query a central PostgreSQL database over a internet connection (read-only). We would like to implement a "stand-alone" system for these terminals so ...
16
votes
4answers
284 views
Starting a branch office on the other side of the world
Going to cut right to the point on this question, as I'm after as diverse range of solutions as possible so don't want to effect any opinions with the question too much.
Client is a UK based ...
3
votes
1answer
50 views
MySQL slave server restart
What's the secure/proper way of restarting the MySQl slave server.
I need to reboot the machine in order to update the kernel and apply some configuration changes.
I've tested it on my lab and ...
1
vote
0answers
27 views
DFSR: Break large replication group into multiple smaller replication groups?
Is there a way to break a very large replication group into smaller replication groups while avoiding a huge backlog while it re-syncs or verifies the files in each smaller replication group?
I have ...
8
votes
2answers
258 views
Windows DFSR - Changed replicated directory permissions and now have a 350,000 backlog for more than a week
Question: Is there a way to make this 350,000 file backlog complete faster? For nearly every file the only change was a change to the ACL for each affected file. Some files have changed content, ...
0
votes
1answer
24 views
dnslint and redadmin, why and when?
A pretty small query really - dnslint and repadmin - what really differentiates these tools in terms of troubleshooting replication? When and why would you use either one.
0
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2answers
49 views
Create a full replica of web server using different hosting company, is it logical?
Is it logical to create a full replica of our webserver, just on a less powerful machine, using other hosting provider ( just because its cheaper ). The idea is to have a plan B, in case main server ...
-1
votes
1answer
45 views
Repadmin and DNScmd
A little query really in terms of the usage of Repadmin and DNScmd when forcing replication of DNS zones. I'm currently studying for my 70-640 (Active Directory Exam) and was wondering what the ...
0
votes
2answers
26 views
what is a good frequency for setting up snapshot replication in sql server 2008
My requirements:
I have a publisher database from which I intend to replicate to a subscriber.
Not all tables need to be replicated.
Amount of data could be ~20-30GB.
Given the above:
is ...
0
votes
0answers
23 views
Postgres Replication on Windows
I have one database (server) of Postgres 8.4 on Windows XP. Two other database, also Postgres 8.4 on laptops (Windows XP). Users take home laptops and change database and when return must replicate to ...
0
votes
1answer
52 views
Mysql: What to do if a disc full happens on master OR slave and ther is no space left to binary logs
Recently I configured master-slave replication for my production with out considering all the
user cases. I am started on all the possible use cases at hard ware level again to ensure we will be ...
0
votes
1answer
26 views
Is it possible that newer data is overwritten by old after MySQL replication slowdown?
I've set up master-master replication of 2 servers and in one of the tables I use REPLACE INTO to update the data in a table. Is it possible that a link between the 2 servers goes down, then server 1 ...
0
votes
1answer
47 views
Remote to remote block level replication
I have to sync 2 iSCSI LUNs together at block-level (mandatory), asynchronous, only in the night, I found some tools to do it when Remote to Local or Local to Remote, but I cannot install anything on ...
0
votes
2answers
59 views
How to move the files of a replicated database (SQL Server 2008 R2) to a different drive
I would appreciate if someone could help me with the following problem:
We use two SQL Server 2008 R2 databases under transactional replication: transactional publication with updatable ...
4
votes
2answers
97 views
Possible to make mysql server both master and slave?
I am getting ready to move a database from one server to another. In order to reduce downtime for the client, I am wondering if it would be possible for me to turn on replication and give it time to ...
0
votes
0answers
33 views
Lync Server 2010 CMS Replication Error: Access denied to RtcReplicaRoot folder
I am unable to replicate Lync Server 2010 CMS and the log files show that "Access denied to RtcReplicaRoot folder"
I have re-installed lync server and also tried doing this
However, none of the ...
0
votes
0answers
57 views
Lync CMS replication is failing for all Domain Computers
I have Lync Server 2010 and Active Directory installed on 2 different Windows Server 2008 R2 machines.
I have added a Windows 7 PC to AD. And I have added this computer to Trusted Application Servers ...
2
votes
3answers
55 views
MySQL to PostgreSQL replication
Is there way to replicate in near-realtime MySQL changes to equal PostgreSQL database?
2
votes
2answers
106 views
--log-slave-updates is OFF but some updates are still logged to the slave binary log?
MySQL version 5.5.14
According to the document, by the default, slave does not log to its binary log any updates that are received from a master server.
Here are my config. on the slave:
# egrep ...
2
votes
2answers
76 views
How to scale out OpenStreetMap data efficiently
For over a year now, I'm running an in-house PostGIS server filled with OSM data, used for both Mapnik-based tile generation and Nominatim-based geocoding, updated with day replicates. This works ...
4
votes
3answers
144 views
Converting our budget-strapped dev environment to ESXi - how to maximize availability on the cheap
We've already run through the process of virtualizing our production servers and now we want to do the same with our dev environment. However, our provider took care of all of the ESX host and cluster ...
1
vote
0answers
93 views
Exchange 2010 cross forest GAL and Availability synchronization
I have two Exchange forests in separate domains. The domains are trusted.
DomainA - Exchange 2010 (single server all roles)
DomainB - Exchange 2007 (single server all roles)
This is not a huge ...
1
vote
0answers
116 views
Offline Address Book Not Replicating Between Exchange 2010 and Exchange 2003
I have recently installed Exchange 2010 in our Exchange 2003 (SP2) environment. So far everything has been great, until we noticed creating new users does not populate the OAB for people still logging ...
0
votes
1answer
54 views
3 Databases, Best Replication Setup? [closed]
We have 3 DB servers, two of them i.e. db1, db2, are located in the same data center. The other one i.e. drdb, is located in a different site. Currently, the replication setup for these servers is of ...
7
votes
1answer
154 views
ZFS replication between 2 ZFS file systems
I initially replicated tank/storage1 --> usb1/storage1-slave (depicted below), and then (deliberately) destroyed the snapshot I replicated from. By doing this, did I lose the ability to incrementally ...
-1
votes
4answers
84 views
Apache replication
I don't know what I need to search for.
I need information about how to "replicate" an Apache server, if one would go down another would take over.
Also the Apache server holds a lot of data files. ...
0
votes
0answers
83 views
MySQL Master-Master w/ multiple read slave cost effective setup in AWS
I've been evaluating Amazon Web Services RDS for MySQL and costing out potential scenarios involving a simple multi-AZ deployment read/write setup vs. a multi-AZ deployment mysql master (hot-standby) ...
1
vote
3answers
139 views
Active Directory Replication across Sites slow or not working
I've just inherited (isn't it always the way!) a Windows Domain. The domain is spread across 2 sites.
Site01 has 3 DCs & Site02 has 2 DCs.
If I create a user in either site, the other DCs in ...
1
vote
3answers
31 views
database replication for new user signup
I have a database that stores the users of my application. When a new user signs up, a record is inserted into the database for that user. I have a replicated version (slave) of this database (using ...
1
vote
1answer
166 views
DRBD Not syncing between my nodes
Some version info:
Operating system is Ubuntu 11.10, on EC2, kernel is 3.0.0-16-virtual and the application info is:
Version: 8.3.11 (api:88)
GIT-hash: 0de839cee13a4160eed6037c4bddd066645e23c5 build ...
0
votes
1answer
31 views
SQL-Server 2008 : Table Insert and Range Check ?
I'm using the Table Value constructor to insert a bunch of rows at a time.
However if i'm using sql replication, I run into a range check constraint on the publisher on my id column managed ...
3
votes
3answers
132 views
What backup method should I choose to backup database on high-load server
I have a mysql (MyISAM) database with size around 30Gb. It has single large table (and some smaller ones but it makes no difference). It performs around 2000 selects (single row by primary ...
2
votes
2answers
84 views
Windows Server 2003: Replication between DC's takes place only after changes are made?
I just finished the 70-294 Kit, and I am left with a huge knownegde gap:
The instructor says that replication taked place 15 seconds after a change is made, and 3 seconds addition for any additional ...
1
vote
2answers
182 views
DFS-R alternatives?
I was wondering what alternatives to DFS-R are out there on windows machines for real-time bidirectional file & folder replication?
DFS-R requires active directory and a domain controller which I ...
2
votes
1answer
39 views
Strange issue with one CCR node exchange 2007
When I fail over to one of our exchange nodes, the store.exe has a very high CPU. It goes to about 50-60% even with no users connected. With users connected it stays up near 100%. On the other node ...
2
votes
0answers
62 views
Exchange 2003 to 2010 public folder replication
I've found several guides and tutorials on public folder replication from 2003 to 2010, but am still a little bit confused.
What we have, is a 2003 exchange server obviously holding all of our public ...
0
votes
0answers
40 views
host and domain naming questions
I'm the IT manager for a reasonably sided organization. We have 1 main office and 2 branch offices in different cities.
I've been managing things here for the last year or so and I inherited a ...
1
vote
1answer
113 views
Very slow MongoDB replica set
I have set up two Mongo instances in EC2 having RAID10. I set up replica set using those two servers and found that this replica is very very slow over network. If I log in locally and issue query ...
2
votes
3answers
455 views
Ubuntu + ZFS: How to migrate entire system to new disks?
Here's my scenario:
I have Ubuntu with native ZFS installed on a server with 2 x 500 GB SATA disks. I installed it following this guide: ...
0
votes
2answers
53 views
Fault tolerant DBMail with PostgreSQL Replication - what are my options here?
I'm currently planning a more fault tolerant setup for my organizations Mail setup.
We currently have two machines available in different datacenters, that we're planning to use for this, one being a ...
1
vote
1answer
45 views
How hard is it to setup SQL Replication? Can it be done by a Semi SQL User?
I'm a semi SQL user, not a DBA, just a regular programmer. One of my upcoming jobs require a SQL replication configuration. I have never done such configuration before
My colleagues have been ...
