Repository: hadoop
Updated Branches:
refs/heads/branch-3.1 777390497 -> 947dc3422
YARN-8624. Updated verbiage around entry point support.
Contributed by Craig Condit
Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/947dc342
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/947dc342
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/947dc342
Branch: refs/heads/branch-3.1
Commit: 947dc342292cf7ee5ea4dd64e15f8cd27654f932
Parents: 7773904
Author: Eric Yang <ey...@apache.org>
Authored: Mon Aug 6 12:37:59 2018 -0400
Committer: Eric Yang <ey...@apache.org>
Committed: Mon Aug 6 12:39:22 2018 -0400
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.../src/site/markdown/DockerContainers.md | 14 +++++---------
1 file changed, 5 insertions(+), 9 deletions(-)
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http://git-wip-us.apache.org/repos/asf/hadoop/blob/947dc342/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/DockerContainers.md
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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 0001489..d435495 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
@@ -316,15 +316,11 @@ set, the behavior will depend on whether the
the command will be overridden when LCE launches the image with YARN's
container launch script.
-If a Docker image has an
-[entry point](https://docs.docker.com/engine/reference/builder/#entrypoint)
-set, the entry point will be honored, but the default command may be
-overridden, as just mentioned above. Unless the entry point is
-something similar to `sh -c` or
-`YARN_CONTAINER_RUNTIME_DOCKER_RUN_OVERRIDE_DISABLE` is set to true, the net
-result will likely be undesirable. Because the YARN container launch script
-is required to correctly launch the YARN task, use of entry points is
-discouraged.
+If a Docker image has an entry point set and
+YARN_CONTAINER_RUNTIME_DOCKER_RUN_OVERRIDE_DISABLE is set to true,
+launch_command will be passed to ENTRYPOINT program as CMD parameters in
+Docker. The format of launch_command looks like: param1,param2 and this
+translates to CMD [ "param1","param2" ] in Docker.
If an application requests a Docker image that has not already been loaded by
the Docker daemon on the host where it is to execute, the Docker daemon will
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