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by: paul |
last post by:
Hi,
i'd like to know how to implement an automatic failover with HADR.
I've configured 2 databases, one primary and the other standby. Everything
works ok (replciation and takeover).
But if i issue a shutdown force on the primary database, the other database
don't become online. I must use takeover by force.
Is there any way or an option i missed ?
thx
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by: Mark A |
last post by:
If server 01 running HADR in the primary role crashes, and the DBA does a
HADR takeover by force on the 02 server to switch roles, then the 02 server
is now the primary.
What happens when the Server 01 is brought back up? It still thinks it is
the primary because that was its role when it crashed and it does not know
about the takeover by force command that was issued. Does the 01 server
check the 02 server to see what role they are in...
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by: Mark A |
last post by:
A consultant has recommended to us that we use virtual IP addresses for our
HADR databases (the virtual IP address is moved when the primary database is
moved to other server), even though automatic client reroute should be able
to point applications to the correct primary HADR database. The consultant
is concerned about a split brain (both servers think they are the primary),
especially when the original primary server crashes, an HADR...
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by: Mark A |
last post by:
DB2 ESE 8.2.3 (FP10) for Linux
We are experiencing a connection hang of 10 - 15 minutes in the following
HADR and automatic client reroute scenario:
01 server is primary database
02 server is standby database
a. applications connected to database on 01 server
b. shutdown 01 server
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by: Joachim Klassen |
last post by:
DB2 V8.2 FP10 on Windows
I tested the following HADR scenario:
- a new tablespace on a new filesytem is created on the primary System
- the replay on standby fails because of lacking permissions
- the tablespace is backed up on the primary system
- tables are created in the new tablespace and data is inserted (and a
couple of logs are archived)
- Takeover is done by the standby
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by: Gladiator |
last post by:
Hai everyone......
i was trying to implement the HADR concept
........ i tried using the following commands ......
On server_1
db2 backup database prod to /backup_dir
db2 update db cfg for prod using
HADR_LOCAL_HOST server_1
HADR_REMOTE_HOST server_2
HADR_LOCAL_SVC port_s1
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by: Joachim Klassen |
last post by:
Hi all,
if I accidentally use a TAKEOVER command with BY FORCE clause while
primary and standby are in peer state I'll end up with two primary's
(at least with FP10 and Windows). Is this works as designed or a bug ?
Manuals say that the standby will inform the primary about the takeover
but will not wait for acknowledgement, so the primary knows about whats
going on. In my eyes primary should either switch to standby or
shutdown...
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by: shorti |
last post by:
I have two questions about HADR recovery. I am running db2 v8 fp12.
1) If the primary suddenly crashes would you always want to switch the
standby to the primary by force...or would there be times when you
would want to make it a standard? (and why)
2) Let us say the primary suddenly crashes (someone pulled the power
cable) and you switch the standby to primary by force. Then you bring
the primary back up and issue a START as...
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by: agentlease |
last post by:
Hi,
Testing the above without TSA or HA, just plain HADR performing manual
db2 TAKEOVER HADR ......................... etc.
I am testing without the PEER_WINDOW i.e. set to 0 and HADR_SYNCMODE
= SYNC.
A quick question, say the primary and standby database servers are in
PEER state and the primary database server suddenly crashes through a
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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