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new 8c378d1ea1d6 YARN-11444. Improve YARN md documentation format. (#6711)
Contributed by Shilun Fan.
8c378d1ea1d6 is described below
commit 8c378d1ea1d6026511981d6bda6c2b22bed03986
Author: slfan1989 <55643692+slfan1...@users.noreply.github.com>
AuthorDate: Sun Apr 7 20:50:46 2024 +0800
YARN-11444. Improve YARN md documentation format. (#6711) Contributed by
Shilun Fan.
Reviewed-by: Ayush Saxena <ayushsax...@apache.org>
Signed-off-by: Shilun Fan <slfan1...@apache.org>
---
.../hadoop-yarn-site/src/site/markdown/CapacityScheduler.md | 4 ++--
.../src/site/markdown/DevelopYourOwnDevicePlugin.md | 2 +-
.../hadoop-yarn-site/src/site/markdown/DockerContainers.md | 6 +++---
.../hadoop-yarn-site/src/site/markdown/GracefulDecommission.md | 4 ++--
.../hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeManager.md | 2 +-
.../hadoop-yarn-site/src/site/markdown/NodeManagerCGroupsMemory.md | 2 +-
.../hadoop-yarn-site/src/site/markdown/PluggableDeviceFramework.md | 2 +-
.../hadoop-yarn-site/src/site/markdown/ReservationSystem.md | 2 +-
.../hadoop-yarn/hadoop-yarn-site/src/site/markdown/ResourceModel.md | 2 +-
.../hadoop-yarn-site/src/site/markdown/RuncContainers.md | 2 +-
.../hadoop-yarn-site/src/site/markdown/TimelineServer.md | 6 +++---
.../hadoop-yarn/hadoop-yarn-site/src/site/markdown/UsingGpus.md | 2 +-
.../hadoop-yarn-site/src/site/markdown/WebServicesIntro.md | 6 +++---
.../hadoop-yarn-site/src/site/markdown/YarnApplicationSecurity.md | 2 +-
14 files changed, 22 insertions(+), 22 deletions(-)
diff --git
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/CapacityScheduler.md
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/CapacityScheduler.md
index 1b94d6ff33e3..2b46c68bd7f3 100644
---
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/CapacityScheduler.md
+++
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/CapacityScheduler.md
@@ -633,7 +633,7 @@ The following configuration parameters can be configured in
yarn-site.xml to con
| `yarn.resourcemanager.reservation-system.planfollower.time-step` |
*Optional* parameter: the frequency in milliseconds of the `PlanFollower`
timer. Long value expected. The default value is *1000*. |
-The `ReservationSystem` is integrated with the `CapacityScheduler` queue
hierachy and can be configured for any **LeafQueue** currently. The
`CapacityScheduler` supports the following parameters to tune the
`ReservationSystem`:
+The `ReservationSystem` is integrated with the `CapacityScheduler` queue
hierarchy and can be configured for any **LeafQueue** currently. The
`CapacityScheduler` supports the following parameters to tune the
`ReservationSystem`:
| Property | Description |
|:---- |:---- |
@@ -879,7 +879,7 @@ Changing queue/scheduler properties and adding/removing
queues can be done in tw
Remove the queue configurations from the file and run refresh as described
above
### Enabling periodic configuration refresh
-Enabling queue configuration periodic refresh allows reloading and applying
the configuration by editing the *conf/capacity-scheduler.xml* without the
necessicity of calling yarn rmadmin -refreshQueues.
+Enabling queue configuration periodic refresh allows reloading and applying
the configuration by editing the *conf/capacity-scheduler.xml* without the
necessity of calling yarn rmadmin -refreshQueues.
| Property | Description |
|:---- |:---- |
diff --git
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/DevelopYourOwnDevicePlugin.md
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/DevelopYourOwnDevicePlugin.md
index 0331f7261531..e129c6c2e0bd 100644
---
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/DevelopYourOwnDevicePlugin.md
+++
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/DevelopYourOwnDevicePlugin.md
@@ -173,5 +173,5 @@ class and want to give it a try in your Hadoop cluster.
Firstly, put the jar file under a directory in Hadooop classpath.
-(recommend $HADOOP_COMMOND_HOME/share/hadoop/yarn). Secondly,
+(recommend $HADOOP_COMMAND_HOME/share/hadoop/yarn). Secondly,
follow the configurations described in [Pluggable Device
Framework](./PluggableDeviceFramework.html) and restart YARN.
\ No newline at end of file
diff --git
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/DockerContainers.md
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/DockerContainers.md
index fe7d1e1ad39e..e512363d022b 100644
---
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/DockerContainers.md
+++
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/DockerContainers.md
@@ -216,7 +216,7 @@ The following properties should be set in yarn-site.xml:
Optional. This configuration setting determines the capabilities
assigned to docker containers when they are launched. While these may not
be case-sensitive from a docker perspective, it is best to keep these
- uppercase. To run without any capabilites, set this value to
+ uppercase. To run without any capabilities, set this value to
"none" or "NONE"
</description>
</property>
@@ -568,7 +568,7 @@ There are several challenges with this bind mount approach
that need to be
considered.
1. Any users and groups defined in the image will be overwritten by the host's
users and groups
-2. No users and groups can be added once the container is started, as
/etc/passwd and /etc/group are immutible in the container. Do not mount these
read-write as it can render the host inoperable.
+2. No users and groups can be added once the container is started, as
/etc/passwd and /etc/group are immutable in the container. Do not mount these
read-write as it can render the host inoperable.
This approach is not recommended beyond testing given the inflexibility to
modify running containers.
@@ -715,7 +715,7 @@ Fine grained access control can also be defined using
`docker.privileged-contain
docker.trusted.registries=library
```
-In development environment, local images can be tagged with a repository name
prefix to enable trust. The recommendation of choosing a repository name is
using a local hostname and port number to prevent accidentially pulling docker
images from Docker Hub or use reserved Docker Hub keyword: "local". Docker run
will look for docker images on Docker Hub, if the image does not exist locally.
Using a local hostname and port in image name can prevent accidental pulling
of canonical images [...]
+In development environment, local images can be tagged with a repository name
prefix to enable trust. The recommendation of choosing a repository name is
using a local hostname and port number to prevent accidentally pulling docker
images from Docker Hub or use reserved Docker Hub keyword: "local". Docker run
will look for docker images on Docker Hub, if the image does not exist locally.
Using a local hostname and port in image name can prevent accidental pulling
of canonical images f [...]
```
docker tag centos:latest localhost:5000/centos:latest
diff --git
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/GracefulDecommission.md
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/GracefulDecommission.md
index e7ce657d41b2..d9770761f525 100644
---
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/GracefulDecommission.md
+++
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/GracefulDecommission.md
@@ -41,7 +41,7 @@ Graceful Decommission of YARN Nodes is the mechanism to
decommission NMs while m
To do a normal decommissioning:
-1. Start a YARN cluster (with NodeManageres and ResourceManager)
+1. Start a YARN cluster (with NodeManagers and ResourceManager)
2. Start a yarn job (for example with `yarn jar...` )
3. Add `yarn.resourcemanager.nodes.exclude-path` property to your
`yarn-site.xml` (Note: you don't need to restart the ResourceManager)
4. Create a text file (the location is defined in the previous step) with one
line which contains the name of a selected NodeManager
@@ -112,7 +112,7 @@ host3
Note: In the future more file formats are planned with timeout support. Follow
the [YARN-5536](https://issues.apache.org/jira/browse/YARN-5536) if you are
interested.
-Important to mention, that the timeout is not persited. In case of a RM
restart/failover the node will be immediatelly decommission. (Follow the
[YARN-5464](https://issues.apache.org/jira/browse/YARN-5464) for changes in
this behavior).
+Important to mention, that the timeout is not persisted. In case of a RM
restart/failover the node will be immediately decommission. (Follow the
[YARN-5464](https://issues.apache.org/jira/browse/YARN-5464) for changes in
this behavior).
### Client or server side timeout
diff --git
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeManager.md
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeManager.md
index 596a47e4e673..38bcf8d1bd73 100644
---
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeManager.md
+++
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeManager.md
@@ -106,7 +106,7 @@ Step 4. Configure a valid RPC address for the NodeManager.
Step 5. Auxiliary services.
- * NodeManagers in a YARN cluster can be configured to run auxiliary
services. For a completely functional NM restart, YARN relies on any auxiliary
service configured to also support recovery. This usually includes (1) avoiding
usage of ephemeral ports so that previously running clients (in this case,
usually containers) are not disrupted after restart and (2) having the
auxiliary service itself support recoverability by reloading any previous state
when NodeManager restarts and reiniti [...]
+ * NodeManagers in a YARN cluster can be configured to run auxiliary
services. For a completely functional NM restart, YARN relies on any auxiliary
service configured to also support recovery. This usually includes (1) avoiding
usage of ephemeral ports so that previously running clients (in this case,
usually containers) are not disrupted after restart and (2) having the
auxiliary service itself support recoverability by reloading any previous state
when NodeManager restarts and reiniti [...]
* A simple example for the above is the auxiliary service 'ShuffleHandler'
for MapReduce (MR). ShuffleHandler respects the above two requirements already,
so users/admins don't have to do anything for it to support NM restart: (1) The
configuration property **mapreduce.shuffle.port** controls which port the
ShuffleHandler on a NodeManager host binds to, and it defaults to a
non-ephemeral port. (2) The ShuffleHandler service also already supports
recovery of previous state after NM restarts.
diff --git
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeManagerCGroupsMemory.md
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeManagerCGroupsMemory.md
index d1988a504826..5f1a8c8c8b42 100644
---
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeManagerCGroupsMemory.md
+++
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeManagerCGroupsMemory.md
@@ -52,7 +52,7 @@ There is no reason to set them both. If the system runs with
swap disabled, both
Virtual memory measurement and swapping
--------------------------------------------
-There is a difference between the virtual memory reported by the container
monitor and the virtual memory limit specified in the elastic memory control
feature. The container monitor uses `ProcfsBasedProcessTree` by default for
measurements that returns values from the `proc` file system. The virtual
memory returned is the size of the address space of all the processes in each
container. This includes anonymous pages, pages swapped out to disk, mapped
files and reserved pages among other [...]
+There is a difference between the virtual memory reported by the container
monitor and the virtual memory limit specified in the elastic memory control
feature. The container monitor uses `ProcfsBasedProcessTree` by default for
measurements that returns values from the `proc` file system. The virtual
memory returned is the size of the address space of all the processes in each
container. This includes anonymous pages, pages swapped out to disk, mapped
files and reserved pages among other [...]
Because of this you can now use `CGroupsResourceCalculator`. This shows only
the sum of the physical memory usage and swapped pages as virtual memory usage
excluding the reserved address space. This reflects much better what the
application and the container allocated.
diff --git
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/PluggableDeviceFramework.md
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/PluggableDeviceFramework.md
index d8733754edac..c835df858f47 100644
---
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/PluggableDeviceFramework.md
+++
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/PluggableDeviceFramework.md
@@ -29,7 +29,7 @@ Some of the pain points for current device plugin development
and integration
are listed below:
-* At least 6 classes to be implemented (If you wanna support
+* At least 6 classes to be implemented (If you want to support
Docker, you’ll implement one more “DockerCommandPlugin”).
* When implementing the “ResourceHandler” interface,
the developer must understand the YARN NM internal concepts like container
diff --git
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/ReservationSystem.md
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/ReservationSystem.md
index ac3269d1e820..cf9b0bd38f63 100644
---
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/ReservationSystem.md
+++
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/ReservationSystem.md
@@ -41,7 +41,7 @@ With reference to the figure above, a typical reservation
proceeds as follows:
* **Step 2** The ReservationSystem leverages a ReservationAgent (GREE in the
figure) to find a plausible allocation for the reservation in the Plan, a data
structure tracking all reservation currently accepted and the available
resources in the system.
- * **Step 3** The SharingPolicy provides a way to enforce invariants on the
reservation being accepted, potentially rejecting reservations. For example,
the CapacityOvertimePolicy allows enforcement of both instantaneous
max-capacity a user can request across all of his/her reservations and a limit
on the integral of resources over a period of time, e.g., the user can reserve
up to 50% of the cluster capacity instantanesouly, but in any 24h period of
time he/she cannot exceed 10% average.
+ * **Step 3** The SharingPolicy provides a way to enforce invariants on the
reservation being accepted, potentially rejecting reservations. For example,
the CapacityOvertimePolicy allows enforcement of both instantaneous
max-capacity a user can request across all of his/her reservations and a limit
on the integral of resources over a period of time, e.g., the user can reserve
up to 50% of the cluster capacity instantaneously, but in any 24h period of
time he/she cannot exceed 10% average.
* **Step 4** Upon a successful validation the ReservationSystem returns to
the user a ReservationId (think of it as an airline ticket).
diff --git
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/ResourceModel.md
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/ResourceModel.md
index 8a449a801deb..d4c8447f4aa5 100644
---
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/ResourceModel.md
+++
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/ResourceModel.md
@@ -130,7 +130,7 @@ resource may also have optional minimum and maximum
properties. The properties
must be named `yarn.resource-types.<resource>.minimum-allocation` and
`yarn.resource-types.<resource>.maximum-allocation`.
-The `yarn.resource-types` property and any unit, mimimum, or maximum properties
+The `yarn.resource-types` property and any unit, minimum, or maximum properties
may be defined in either the usual `yarn-site.xml` file or in a file named
`resource-types.xml`. For example, the following could appear in either file:
diff --git
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/RuncContainers.md
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/RuncContainers.md
index 7a7ef9057c57..2ad59a390bd4 100644
---
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/RuncContainers.md
+++
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/RuncContainers.md
@@ -651,7 +651,7 @@ There are several challenges with this bind mount approach
that need to be
considered.
1. Any users and groups defined in the image will be overwritten by the host's
users and groups
-2. No users and groups can be added once the container is started, as
/etc/passwd and /etc/group are immutible in the container. Do not mount these
read-write as it can render the host inoperable.
+2. No users and groups can be added once the container is started, as
/etc/passwd and /etc/group are immutable in the container. Do not mount these
read-write as it can render the host inoperable.
This approach is not recommended beyond testing given the inflexibility to
modify running containers.
diff --git
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/TimelineServer.md
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/TimelineServer.md
index 5b3cca9ac71f..463d396e10f7 100644
---
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/TimelineServer.md
+++
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/TimelineServer.md
@@ -859,7 +859,7 @@ Below is the elements of a single event object. Note that
`value` of
| Item | Data Type | Description|
|:---- |:---- |:---- |
| `eventtype` | string | The event type |
-| `eventinfo` | map | The information of the event, which is orgainzied in a
map of `key` : `value` |
+| `eventinfo` | map | The information of the event, which is organized in a
map of `key` : `value` |
| `timestamp` | long | The timestamp of the event |
### Response Examples:
@@ -1317,7 +1317,7 @@ None
| `queue` | string | The queue to which the application submitted |
| `appState` | string | The application state according to the ResourceManager
- valid values are members of the YarnApplicationState enum: `FINISHED`,
`FAILED`, `KILLED` |
| `finalStatus` | string | The final status of the application if finished -
reported by the application itself - valid values are: `UNDEFINED`,
`SUCCEEDED`, `FAILED`, `KILLED` |
-| `progress` | float | The reported progress of the application as a percent.
Long-lived YARN services may not provide a meaninful value here —or use it as a
metric of actual vs desired container counts |
+| `progress` | float | The reported progress of the application as a percent.
Long-lived YARN services may not provide a meaningful value here —or use it as
a metric of actual vs desired container counts |
| `trackingUrl` | string | The web URL of the application (via the RM Proxy) |
| `originalTrackingUrl` | string | The actual web URL of the application |
| `diagnosticsInfo` | string | Detailed diagnostics information on a completed
application|
@@ -2019,7 +2019,7 @@ querying some entities, such as Domains; here the API
deliberately
downgrades permission-denied outcomes as empty and not-founds responses.
This hides details of other domains from an unauthorized caller.
1. If the content of timeline entity PUT operations is invalid,
-this failure *will not* result in an HTTP error code being retured.
+this failure *will not* result in an HTTP error code being returned.
A status code of 200 will be returned —however, there will be an error code
in the list of failed entities for each entity which could not be added.
diff --git
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/UsingGpus.md
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/UsingGpus.md
index 85412af88e41..1a33d5c900cf 100644
---
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/UsingGpus.md
+++
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/UsingGpus.md
@@ -80,7 +80,7 @@ By default, YARN will automatically detect and config GPUs
when above config is
device number of GPUs is using `nvidia-smi -q` and search `Minor Number`
output.
- When minor numbers are specified manually, admin needs to include indice of
GPUs
+ When minor numbers are specified manually, admin needs to include indices of
GPUs
as well, format is `index:minor_number[,index:minor_number...]`. An example
of manual specification is `0:0,1:1,2:2,3:4"`to allow YARN NodeManager to
manage GPU devices with indices `0/1/2/3` and minor number `0/1/2/4`.
diff --git
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/WebServicesIntro.md
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/WebServicesIntro.md
index 11452f657857..e067edd1da22 100644
---
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/WebServicesIntro.md
+++
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/WebServicesIntro.md
@@ -48,7 +48,7 @@ Currently only GET is supported. It retrieves information
about the resource spe
### Security
-The web service REST API's go through the same security as the web UI. If your
cluster adminstrators have filters enabled you must authenticate via the
mechanism they specified.
+The web service REST API's go through the same security as the web UI. If your
cluster administrators have filters enabled you must authenticate via the
mechanism they specified.
### Headers Supported
@@ -70,7 +70,7 @@ This release supports gzip compression if you specify gzip in
the Accept-Encodin
This release of the web service REST APIs supports responses in JSON and XML
formats. JSON is the default. To set the response format, you can specify the
format in the Accept header of the HTTP request.
-As specified in HTTP Response Codes, the response body can contain the data
that represents the resource or an error message. In the case of success, the
response body is in the selected format, either JSON or XML. In the case of
error, the resonse body is in either JSON or XML based on the format requested.
The Content-Type header of the response contains the format requested. If the
application requests an unsupported format, the response status code is 500.
Note that the order of the [...]
+As specified in HTTP Response Codes, the response body can contain the data
that represents the resource or an error message. In the case of success, the
response body is in the selected format, either JSON or XML. In the case of
error, the response body is in either JSON or XML based on the format
requested. The Content-Type header of the response contains the format
requested. If the application requests an unsupported format, the response
status code is 500. Note that the order of the [...]
### Response Errors
@@ -101,7 +101,7 @@ Response Body:
```json
{
- app":
+ "app":
{
"id":"application_1324057493980_0001",
"user":"user1",
diff --git
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/YarnApplicationSecurity.md
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/YarnApplicationSecurity.md
index fc58b0a3d8c1..f93ed55547e9 100644
---
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/YarnApplicationSecurity.md
+++
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/YarnApplicationSecurity.md
@@ -576,7 +576,7 @@ system property in AM).
`[ ]` Web browser interaction verified in secure cluster.
-`[ ]` REST client interation (GET operations) tested.
+`[ ]` REST client integration (GET operations) tested.
`[ ]` Application continues to run after Kerberos Token expiry.
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