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| author | Kousuke Saruta <sarutak@oss.nttdata.co.jp> | 2014-09-25 16:49:15 -0700 |
|---|---|---|
| committer | Patrick Wendell <pwendell@gmail.com> | 2014-09-25 16:49:15 -0700 |
| commit | 0dc868e787a3bc69c1b8e90d916a6dcea8dbcd6d (patch) | |
| tree | c5f16816cb9169916e8d697fd922b6d2fc521e98 /docs/spark-standalone.md | |
| parent | ff637c9380a6342fd0a4dde0710ec23856751dd4 (diff) | |
| download | spark-0dc868e787a3bc69c1b8e90d916a6dcea8dbcd6d.tar.gz spark-0dc868e787a3bc69c1b8e90d916a6dcea8dbcd6d.tar.bz2 spark-0dc868e787a3bc69c1b8e90d916a6dcea8dbcd6d.zip | |
[SPARK-3584] sbin/slaves doesn't work when we use password authentication for SSH
Author: Kousuke Saruta <sarutak@oss.nttdata.co.jp>
Closes #2444 from sarutak/slaves-scripts-modification and squashes the following commits:
eff7394 [Kousuke Saruta] Improve the description about Cluster Launch Script in docs/spark-standalone.md
7858225 [Kousuke Saruta] Modified sbin/slaves to use the environment variable "SPARK_SSH_FOREGROUND" as a flag
53d7121 [Kousuke Saruta] Merge branch 'master' of git://git.apache.org/spark into slaves-scripts-modification
e570431 [Kousuke Saruta] Added a description for SPARK_SSH_FOREGROUND variable
7120a0c [Kousuke Saruta] Added a description about default host for sbin/slaves
1bba8a9 [Kousuke Saruta] Added SPARK_SSH_FOREGROUND flag to sbin/slaves
88e2f17 [Kousuke Saruta] Merge branch 'master' of git://git.apache.org/spark into slaves-scripts-modification
297e75d [Kousuke Saruta] Modified sbin/slaves not to export HOSTLIST
Diffstat (limited to 'docs/spark-standalone.md')
| -rw-r--r-- | docs/spark-standalone.md | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/docs/spark-standalone.md b/docs/spark-standalone.md index 29b5491861..58103fab20 100644 --- a/docs/spark-standalone.md +++ b/docs/spark-standalone.md @@ -62,7 +62,12 @@ Finally, the following configuration options can be passed to the master and wor # Cluster Launch Scripts -To launch a Spark standalone cluster with the launch scripts, you need to create a file called `conf/slaves` in your Spark directory, which should contain the hostnames of all the machines where you would like to start Spark workers, one per line. The master machine must be able to access each of the slave machines via password-less `ssh` (using a private key). For testing, you can just put `localhost` in this file. +To launch a Spark standalone cluster with the launch scripts, you should create a file called conf/slaves in your Spark directory, +which must contain the hostnames of all the machines where you intend to start Spark workers, one per line. +If conf/slaves does not exist, the launch scripts defaults to a single machine (localhost), which is useful for testing. +Note, the master machine accesses each of the worker machines via ssh. By default, ssh is run in parallel and requires password-less (using a private key) access to be setup. +If you do not have a password-less setup, you can set the environment variable SPARK_SSH_FOREGROUND and serially provide a password for each worker. + Once you've set up this file, you can launch or stop your cluster with the following shell scripts, based on Hadoop's deploy scripts, and available in `SPARK_HOME/bin`: |