Single-layer Gmetad high availability

Although the Gmetad can be multi-layered, but the layer Gmetad all need to open gweb, or is very troublesome. If just worry about a gmetad unsafe, can be made into Gmetad high availability, but I do not know whether to think of Hadoop ha as automatic failover approach.

Resource arrangement:

Hdp1:gmetad, Gmond, Gweb

Hdp2:gmetad, Gmond, Gweb

Hdp3:gmond

Purpose of configuration:

HDP1 and HDP2 are Gmetad, gweb high availability, each node's gweb can show the entire cluster of data

HDP1, 2, 3 belong to a cluster

Configuration file:

Hdp3--gmond.conf:

Cluster {

Name = "HDP3"

Owner = "Unspecified"

Latlong = "Unspecified"

url = "Unspecified"

}

/* The host section describes attributes of the host, like the location */

Host {

Location = "Unspecified"

}

/* Feel free to specify as many udp_send_channels as. Gmond

Used to only support have a single channel */

Udp_send_channel {

#bind_hostname = yes # highly recommended, soon to is default.

# This option tells Gmond to use a source address

# That's resolves to the machine ' s hostname. Without

# This, the metrics could appear to come from any

# interface and the DNS names associated with

# those IPs would be used to create the rrds.

#mcast_join = 239.2.11.71

Host = Hdp1

Port = 8649

TTL = 1

}

Udp_send_channel {

#bind_hostname = yes # highly recommended, soon to is default.

# This option tells Gmond to use a source address

# That's resolves to the machine ' s hostname. Without

# This, the metrics could appear to come from any

# interface and the DNS names associated with

# those IPs would be used to create the rrds.

#mcast_join = 239.2.11.71

Host = HDP2

Port = 8649

TTL = 1

}

/* You can specify as many udp_recv_channels as. */

Udp_recv_channel {

#mcast_join = 239.2.11.71

#port = 8649

#bind = 239.2.11.71

#retry_bind = True

# Size of the UDP buffer. If You is handling lots of metrics you really

# should bump it up to e.g. 10MB or even higher.

# buffer = 10485760

}

/* You can specify as many tcp_accept_channels as a to share

An XML description of the state of the cluster * *

Tcp_accept_channel {

#port = 8649

# If you want to gzip XML output

Gzip_output = No

}

Hdp1--gmond.conf:

Cluster {

Name = "HDP3"

Owner = "Unspecified"

Latlong = "Unspecified"

url = "Unspecified"

}

/* The host section describes attributes of the host, like the location */

Host {

Location = "Unspecified"

}

/* Feel free to specify as many udp_send_channels as. Gmond

Used to only support have a single channel */

Udp_send_channel {

#bind_hostname = yes # highly recommended, soon to is default.

# This option tells Gmond to use a source address

# That's resolves to the machine ' s hostname. Without

# This, the metrics could appear to come from any

# interface and the DNS names associated with

# those IPs would be used to create the rrds.

#mcast_join = 239.2.11.71

Host = Hdp1

Port = 8649

TTL = 1

}

Udp_send_channel {

#bind_hostname = yes # highly recommended, soon to is default.

# This option tells Gmond to use a source address

# That's resolves to the machine ' s hostname. Without

# This, the metrics could appear to come from any

# interface and the DNS names associated with

# those IPs would be used to create the rrds.

#mcast_join = 239.2.11.71

Host = HDP2

Port = 8649

TTL = 1

}

/* You can specify as many udp_recv_channels as. */

Udp_recv_channel {

#mcast_join = 239.2.11.71

Port = 8649

#bind = 239.2.11.71

}

/* You can specify as many tcp_accept_channels as a to share

An XML description of the state of the cluster * *

Tcp_accept_channel {

Port = 8649

}

Hdp1--gmetad.conf:

[email protected] ganglia]# grep-v ^# gmetad.conf  

Data_source "HDP3" localhost

RRAs "rra:average:0.5:1:244" "rra:average:0.5:24:244" "rra:average:0.5:168:244" "rra:average:0.5:672:244" \

gridname "HDP"  

All_trusted on

Setuid_username Ganglia

Xml_port 8651

Interactive_port 8652

Case_sensitive_hostnames 0

Hdp2--gmond.conf:

Emulate HDP1 's configuration to

Effect achieved for configuration purposes

Single-layer Gmetad high availability