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Questions tagged [heartbeat]

Heartbeat (as of version 3.x) is a cluster messaging layer, often combined with pacemaker as the cluster resource manager.

A detailed explanation, including historical notes, can be found at: http://www.linux-ha.org/wiki/Heartbeat

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How can config "Clearing expired failcount" time with pacemaker

I have a problem with failcount when using pacemaker and corosync. My /var/log/messages file: Dec 23 22:19:36 node1 attrd[1922]: notice: attrd_perform_update: Sent update 81: fail-count-named=1 My lastest failcount at Dec 23 22:19:36. But after few…
Thao Nguyen
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How to get Heartrate data from Apple's Healthkit?

I am trying to read Heartrate data from Healthkit. I am not able to read that data. I have gone throught this link. Please help me guys..Thank you.
Vinay Podili
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Pacemaker: How keep the VirtualIP resource on at least one node

I use pacemaker and corosync to manage failover with two nodes in active/passive mode. I have configured a virtual IP resource as this: # pcs resource create VirtualIP ocf:heartbeat:IPaddr2 \ ip=192.9.50.54 cidr_netmask=32 op monitor…
moonbossa
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iOS: send heartbeat to the server while phone is locked and the app is on the background/suspended

I have the task. My iOS app must send heartbeat messages to the server once for every 10 minutes. iOS app must do this always when the app is not killed (i.e. terminated i.e. removed from task manager) despite the screen is locked, the app in the…
nickolay
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how to check heartbeat of other server using node js

I implemented load balancer in node.js and want to check the availability of my server by healthchecking on regular interval. Can anyone please suggest any middleware that I can use for node.js or any custom implementation that can be used out for…
Jvalant
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heartbeat between two mongos instances

I'm working on setting up auto failover on the whole stack of my website, which includes mongodb. For the time being, I utilize heartbeat to detect failure of the primary mongos and then change the host name on client side to point to the secondary…
dennis.s
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Problems with cluster's virtual IP

I'm planning to implement an 99% high avalaibility cluster using heartbeat/corosync + pacemaker for communication between some servers, but these machines aren't into same gateway/netmask and i cannot share an virtual IP for heartbeat. There's a way…
samcarlos
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WebSphere MQ - Changing channel definition structure using XMS.NET API

I am trying to set the MQCD structure properties - specifically HeartBeatInterval using XMS.NET API. Background: I have client applications (in .NET) using XMS.NET API to read messages from WebSphere MQ. I use the ClientAcknowledge mode. If the…
screenname
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Netty doesn't detect timeout after channel drop

Strange Netty behavior: Got a server channel that expects heartbeats and catches timeouts with IdleStateHandler. Construction like so: @Override public void initChannel(SocketChannel ch) throws Exception { final ByteBuf delimiter =…
stanga
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application level HA available with Linux HeartBeat..?

I was trying to understand how Linux-HA project, Heartbeat actually works. I found out that Heartbeat provides HA at a system level rather than application level, meaning the Virtual IP is move to backup system only on a system-down-scenario and not…
302Found
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Netty Sctp Heartbeat on wrong Interface

I am using a NioSctpServerChannel connection with Netty between two different machines. The connection is established successfully and receives data after the client's channelActive-Handler sends some data to the server. The receiving interface…
Tom
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Cannot connect to the OpenSSL server with OPENSSL_NO_HEARTBEATS enabled

I have a server running OpenSSL v 0.9.8 and a client based on OpenSSL 1.0.1e. When the client OpenSSL library compiled with -DOPENSSL_NO_HEARTBEATS it cannot connect to server. The only thing I see is a error page. Please suggest something. What…
andigor
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Wordpress Heartbeat API minimal interval

What is the minimal interval between pulses in Wordpress Heartbeat API? I am referring to changing default interval, not this other feature allowing to temporary speed pulses for 2,5 minutes. Is this good idea to lower this interval under 5…
user3562259
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How can I make malformed SSL Heartbeat requests in C#?

I have yet to find any responses to the CloudFlare challenge in C#. How would I construct and send a SSL Heartbeat request from a C# Console Application to a given URL? (Should work with https://www.cloudflarechallenge.com ) I'm not even sure where…
Ehryk
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RabbitMQ: Server heartbeat must fail 3 times before connection drop?

We have a HA RabbitMQ cluster (v3.2.x) with two nodes that sits behind a load-balancer. Our clients are configured to use a 300s heartbeat. Everything works as expected most of the time. However, if the client's connection drops (say the…
Tony
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