get the driver’s IP in spark yarn-cluster mode


In cluster mode, the Spark driver runs inside an application master process which is managed by YARN on the cluster, and the client can go away after initiating the application. In client mode, the driver runs in the client process, and the application master is only used for requesting resources from YARN.

Sometimes we will have a bunch of logs for a terminated cluster and we need to find out which node was the driver in cluster mode.

Searching for “driverUrl” on the application/container logs, we will find it

find . -iname "*.gz" | xargs zgrep "driverUrl"
./container_1459071485818_0006_02_000001/stderr.gz:15/03/28 05:10:47 INFO YarnAllocator: Launching ExecutorRunnable. driverUrl: spark://CoarseGrainedScheduler@172.31.16.15:47452,  executorHostname: ip-172-31-16-13.ec2.internal
...
./container_1459071485818_0006_02_000001/stderr.gz:15/03/28 05:10:47 INFO YarnAllocator: Launching ExecutorRunnable. driverUrl: spark://CoarseGrainedScheduler@172.31.16.15:47452,  executorHostname: ip-172-31-16-14.ec2.internal

On this case the driver was running on 172.31.16.15.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s