Copy fixes: typos, misspellings, grammar, wording

This commit is contained in:
Caleb Spare 2014-04-17 14:45:53 -07:00
parent df985697b4
commit 1a6e85320a
7 changed files with 15 additions and 15 deletions

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@ -6,7 +6,7 @@ sidebar_current: "docs-guides-datacenters"
# Multi-Datacenter Deploys
One of the key features of Consul is it's support for multiple datacenters.
One of the key features of Consul is its support for multiple datacenters.
The [architecture](/docs/internals/architecture.html) of Consul is designed to
promote a low-coupling of datacenters, so that connectivity issues or
failure of any datacenter does not impact the availability of Consul in other

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@ -100,7 +100,8 @@ Then run the same query against your Bind instance and make sure you get a resul
### Troubleshooting
If you don't get an answer from Bind but you do get an answer from Consul then your best bet is to turn on the query log to see what's going on:
If you don't get an answer from Bind but you do get an answer from Consul then your
best bet is to turn on the query log to see what's going on:
[root@localhost ~]# rndc querylog
[root@localhost ~]# tail -f /var/log/messages
@ -110,5 +111,6 @@ In there if you see errors like this:
error (no valid RRSIG) resolving
error (no valid DS) resolving
Then DNSSEC is not disabled properly. If you see errors about network connections then verify that there are no firewall or routing problems between the servers running Bind and Consul
Then DNSSEC is not disabled properly. If you see errors about network connections
then verify that there are no firewall or routing problems between the servers
running Bind and Consul.

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@ -64,7 +64,7 @@ the `last_log_index` shows the last log that is on disk. The same `info` command
can be run on the new server to see how far behind it is. Eventually the server
will be caught up, and the values should match.
It is best to add servers one at a time, allowing them to catchup. This avoids
It is best to add servers one at a time, allowing them to catch up. This avoids
the possibility of data loss in case the existing servers fail while bringing
the new servers up-to-date.
@ -101,6 +101,4 @@ The leader should also emit various logs including:
...
At this point the node has been gracefully removed from the cluster, and
will shutdown.
will shut down.

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@ -29,7 +29,7 @@ the node as either being a client or server, but there are other instances of th
agents can run the DNS or HTTP interfaces, and are responsible for running checks and
keeping services in sync.
* Client - A client is an agent that forwards all RPC's to a server. The client is relatively
* Client - A client is an agent that forwards all RPCs to a server. The client is relatively
stateless. The only background activity a client performs is taking part of LAN gossip pool.
This has a minimal resource overhead and consumes only a small amount of network bandwidth.

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@ -95,7 +95,7 @@ of 5 can tolerate 2 node failures. The recommended configuration is to either
run 3 or 5 Consul servers per datacenter. This maximizes availability without
greatly sacrificing performance. See below for a deployment table.
In terms of performance, Raft is comprable to Paxos. Assuming stable leadership,
In terms of performance, Raft is comparable to Paxos. Assuming stable leadership,
committing a log entry requires a single round trip to half of the cluster.
Thus performance is bound by disk I/O and network latency. Although Consul is
not designed to be a high-throughput write system, it should handle on the order

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@ -25,13 +25,13 @@ and a weaker coupling between the servers and agents. However, the central broke
has scaling limits, and acts as a single point of failure in the system.
Consul provides the same health checking abilities as both Nagios and Sensu,
is friendly to modern DevOps, and avoids the scaling issues inherint in the
other systems. Consul runs all checks locally like Sensu avoiding placing
is friendly to modern DevOps, and avoids the scaling issues inherent in the
other systems. Consul runs all checks locally, like Sensu, avoiding placing
a burden on central servers. The status of checks is maintained by the Consul
servers, which are fault tolerant and have no single point of failure.
Lastly, Consul can scale to vastly more checks because it relies on edge triggered
updates. This means only when a check transitions from "passing" to "failing"
or vice versa an update is triggered.
updates. This means that an update is only triggered when a check transitions
from "passing" to "failing" or vice versa.
In a large fleet, the majority of checks are passing, and even the minority
that are failing are persistent. By capturing changes only, Consul reduces

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@ -11,7 +11,7 @@ It uses multiple central servers that are strongly consistent and
fault tolerant. Nodes register services using an HTTP API, and
queries can be made over HTTP or DNS to perform discovery.
Consul is very similar, but provides a super-set of features. Consul
Consul is very similar, but provides a superset of features. Consul
also relies on multiple central servers to provide strong consistency
and fault tolerance. Nodes can use an HTTP API or use an agent to
register services, and queries are made over HTTP or DNS.