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https://issues.apache.org/jira/browse/YARN-8785?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16635493#comment-16635493
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Hudson commented on YARN-8785:
------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #15094 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/15094/])
YARN-8785. Improve the error message when a bind mount is not (skumpf: rev
5edb9d3b972ad51e23b9cac7928b38876068a463)
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/impl/utils/docker-util.c
> Improve the error message when a bind mount is not whitelisted
> --------------------------------------------------------------
>
> Key: YARN-8785
> URL: https://issues.apache.org/jira/browse/YARN-8785
> Project: Hadoop YARN
> Issue Type: Sub-task
> Affects Versions: 3.1.0, 2.9.1, 3.1.1, 3.1.2
> Reporter: Simon Prewo
> Assignee: Simon Prewo
> Priority: Major
> Labels: Docker
> Fix For: 3.2.0, 3.1.2
>
> Attachments: YARN-8785-branch-3.1.002.patch
>
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> A user recieves the error message _Invalid docker rw mount_ when a container
> tries to mount a directory which is not configured in property
> *docker.allowed.rw-mounts*.
> {code:java}
> Invalid docker rw mount
> '/usr/local/hadoop/logs/userlogs/application_1536476159258_0004/container_1536476159258_0004_02_000001:/usr/local/hadoop/logs/userlogs/application_1536476159258_0004/container_1536476159258_0004_02_000001',
>
> realpath=/usr/local/hadoop/logs/userlogs/application_1536476159258_0004/container_1536476159258_0004_02_000001{code}
> The error message makes the user think "It is not possible due to a docker
> issue". My suggestion would be to put there a message like *Configuration of
> the container executor does not allow mounting directory.*.
> hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/impl/utils/docker-util.c
> CURRENT:
> {code:java}
> permitted_rw = check_mount_permitted((const char **) permitted_rw_mounts,
> mount_src);
> permitted_ro = check_mount_permitted((const char **) permitted_ro_mounts,
> mount_src);
> if (permitted_ro == -1 || permitted_rw == -1) {
> fprintf(ERRORFILE, "Invalid docker mount '%s', realpath=%s\n",
> values[i], mount_src);
> ...
> {code}
> NEW:
> {code:java}
> permitted_rw = check_mount_permitted((const char **) permitted_rw_mounts,
> mount_src);
> permitted_ro = check_mount_permitted((const char **) permitted_ro_mounts,
> mount_src);
> if (permitted_ro == -1 || permitted_rw == -1) {
> fprintf(ERRORFILE, "Configuration of the container executor does not
> allow mounting directory '%s', realpath=%s\n", values[i], mount_src);
> ...
> {code}
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