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configure spark for hash using env vars #207

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Merged
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Feb 28, 2019
Merged

configure spark for hash using env vars #207

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11 changes: 9 additions & 2 deletions README.md
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Expand Up @@ -126,13 +126,20 @@ docker exec -it some-scylla cqlsh
```


### External Apache Spark cluster
### Configuration for Apache Spark

Just set url to the Spark Master though env var
Use env variables to set memory for hash job:
```
export DRIVER_MEMORY=30g
export EXECUTOR_MEMORY=60g
```

To use external claster just set url to the Spark Master though env var
```
MASTER="spark://<spark-master-url>" ./hash <path>
```


### CLI arguments

All three commands accept parameters for database connection and logging:
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3 changes: 2 additions & 1 deletion hash
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Expand Up @@ -56,7 +56,8 @@ sparkSubmit \
--master "${MASTER:=local[*]}" \
--name "${app_name}" \
--jars "${deps_jar}" \
--conf "spark.executor.memory=4g" \
--conf "spark.driver.memory=${DRIVER_MEMORY:=2g}" \
--conf "spark.executor.memory=${EXECUTOR_MEMORY:=4g}" \
--conf "spark.serializer=org.apache.spark.serializer.KryoSerializer" \
--conf "spark.tech.sourced.engine.skip.read.errors=true" \
--conf "spark.files.maxPartitionBytes=12582912" \
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