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new 37133ca Remove old references to mso algorithm
37133ca is described below
commit 37133ca2a21a8476958a8f52ddd609fac5aefbb7
Author: Derek Gelinas <mrdgeli...@gmail.com>
AuthorDate: Fri Feb 9 10:49:28 2018 -0500
Remove old references to mso algorithm
---
.../D22DCAA3-18CC-48F4-965B-5312993F9820.png | Bin 99921 -> 0 bytes
docs/source/admin/quick_howto/mso-enable.png | Bin 107805 -> 124819 bytes
docs/source/admin/quick_howto/mso-rank.png | Bin 140070 -> 0 bytes
docs/source/admin/quick_howto/multi_site.rst | 50 ++++++---------------
4 files changed, 13 insertions(+), 37 deletions(-)
diff --git
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b/docs/source/admin/quick_howto/D22DCAA3-18CC-48F4-965B-5312993F9820.png
deleted file mode 100644
index 59d5b8e..0000000
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a/docs/source/admin/quick_howto/D22DCAA3-18CC-48F4-965B-5312993F9820.png and
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diff --git a/docs/source/admin/quick_howto/mso-enable.png
b/docs/source/admin/quick_howto/mso-enable.png
index 9932de1..70207ba 100644
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diff --git a/docs/source/admin/quick_howto/mso-rank.png
b/docs/source/admin/quick_howto/mso-rank.png
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diff --git a/docs/source/admin/quick_howto/multi_site.rst
b/docs/source/admin/quick_howto/multi_site.rst
index bd4807d..270efc2 100644
--- a/docs/source/admin/quick_howto/multi_site.rst
+++ b/docs/source/admin/quick_howto/multi_site.rst
@@ -57,45 +57,12 @@ Configure Multi Site Origin
4) This OFQDN must be valid - ATS will perform a DNS lookup on this
FQDN even if IPs, not DNS, are used in the parent.config.
5) The OFQDN entered as the "Origin Server Base URL" will be sent to
the origins as a host header. All origins must be configured to respond to
this host.
-6) Select an option from the "Multi Site Origin Algorithm" drop-down list.
Four MSO algorithms are supported:
-
-+------------------+--------------------------------------------------------------------------------------------------------------------+
-| Option |
Description |
-+==================+====================================================================================================================+
-| Consistent hash | Origin server selection is based on the consistent hash
of requested URLs. |
-+------------------+--------------------------------------------------------------------------------------------------------------------+
-| Primary/back | Round robin selection does not occur. The first origin
server is selected unless it fails. |
-| | If the first fails, the second and other following origin
servers will be tried by order. |
-| | Order is defined by 2 factors - if the origin server's
cachegroup is configured as the |
-| | parent cachegroup for the mid, then this server will be
used as the primary. The same rules |
-| | apply for secondary parents, in order. Within the
cachegroups, the rank parameter will sort |
-| | order further. If no parents are defined at the mid, then
only rank is considered. |
-+------------------+--------------------------------------------------------------------------------------------------------------------+
-| Strict | MID caches serve requests strictly in turn. For example:
origin server 1 serves the first request, |
-| round-robin | origin server 2 serves the second request, and so on.
|
-+------------------+--------------------------------------------------------------------------------------------------------------------+
-| IP based | MID cache goes through the origin server list in a round
robin-based on the IP address of EDGE cache. |
-| round-robin |
|
-+------------------+--------------------------------------------------------------------------------------------------------------------+
-
-7) Optionally, there are two configuration options that can set the order of
the origins used if "Primary/backup" is selected for "Multi Site Origin
Algorithm". By creating location-based cachegroups and assigning the origin
servers accordingly and defining these cachegroups as parents for specific
mids, location-based primary/secondary selection can be made. If
primary/secondary selection should be the same for all mids, then a new
parameter “rank” should be configured for each origin [...]
-
-.. image:: mso-rank.png
- :scale: 60%
- :align: center
-
-8) Assign the parent.config location parameter to the MID profile:
-
-.. image:: D22DCAA3-18CC-48F4-965B-5312993F9820.png
- :scale: 100%
- :align: center
-
-9) For ATS 5.x, configure the mid hdr_rewrite on the delivery service,
example: ::
+6) For ATS 5.x, configure the mid hdr_rewrite on the delivery service,
example: ::
cond %{REMAP_PSEUDO_HOOK} __RETURN__ set-config
proxy.config.http.parent_origin.dead_server_retry_enabled 1 __RETURN__
set-config proxy.config.http.parent_origin.simple_retry_enabled 1 __RETURN__
set-config proxy.config.http.parent_origin.simple_retry_response_codes
"400,404,412" __RETURN__ set-config
proxy.config.http.parent_origin.dead_server_retry_response_codes "502,503"
__RETURN__ set-config proxy.config.http.connect_attempts_timeout 2 __RETURN__
set-config proxy.config.http.connec [...]
-10) As of ATS 6.x, multi-site options must be set as parameters within the
parent.config. Header rewrite parameters will be ignored. See `ATS
parent.config
<https://docs.trafficserver.apache.org/en/6.2.x/admin-guide/files/parent.config.en.html>`
for more details. These parameters are now handled by the creation of a
delivery service profile.
+7) Create a delivery service profile. This must be done to set the MSO
algorithm. Also, as of ATS 6.x, multi-site options must be set as parameters
within the parent.config. Header rewrite parameters will be ignored. See `ATS
parent.config
<https://docs.trafficserver.apache.org/en/6.2.x/admin-guide/files/parent.config.en.html>`
for more details. These parameters are now handled by the creation of a
delivery service profile.
a) Create a profile of the type DS_PROFILE for the delivery service in
question.
@@ -114,8 +81,17 @@ b) Click "Show profile parameters" to bring up the
parameters screen for the pro
| mso.parent_retry | parent.config | simple_retry,
both, | parent_retry |
| | |
unavailable_server_retry | |
+----------------------------------------+------------------+--------------------------+-------------------------+
-| mso.unavailable_server_retry_responses | parent.config | list of server
response | |
-| | | codes, eg
"500,502,503" | |
+| mso.unavailable_server_retry_responses | parent.config | list of server
response | defaults to the value |
+| | | codes, eg
"500,502,503" | in records.config |
+| | |
| when unused. |
++----------------------------------------+------------------+--------------------------+-------------------------+
+| mso.max_simple_retries | parent.config | Nubmer of
retries made | defaults to the value |
+| | | after a 4xx
error | in records.config |
+| | |
| when unused. |
++----------------------------------------+------------------+--------------------------+-------------------------+
+| mso.max_unavailable_server_retries | parent.config | Nubmer of
retries made | defaults to the value |
+| | | after a 5xx
error | in records.config |
+| | |
| when unused. |
+----------------------------------------+------------------+--------------------------+-------------------------+
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