Github user 1ambda commented on the issue:
https://github.com/apache/zeppelin/pull/1831
I tested on yarn-client, mesos-client and found that
- **mesos-client mode copy pyspark-cassandra submitted by `--packages`** as
you can see [here]
(https://gist.github.com/1ambda/e3326107d14ece9a39663cbc56f05756) (the error is
due to invalid python version, not problem of spark, pyspark-cassandra)
```python
Using Python version 2.6.6 (r266:84292, Aug 18 2016 15:13:37)
SparkContext available as sc, HiveContext available as sqlContext.
>>> import pyspark_cassandra
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File
"/tmp/spark-df7bc8fa-233f-4124-855b-4a39fa948c1a/userFiles-ab70ffa3-212b-47ee-9611-9c240d3ce899/TargetHolding_pyspark-cassandra-0.3.5.jar/pyspark_cassandra/__init__.py",
line 24, in <module>
File
"/tmp/spark-df7bc8fa-233f-4124-855b-4a39fa948c1a/userFiles-ab70ffa3-212b-47ee-9611-9c240d3ce899/TargetHolding_pyspark-cassandra-0.3.5.jar/pyspark_cassandra/context.py",
line 16, in <module>
File
"/tmp/spark-df7bc8fa-233f-4124-855b-4a39fa948c1a/userFiles-ab70ffa3-212b-47ee-9611-9c240d3ce899/TargetHolding_pyspark-cassandra-0.3.5.jar/pyspark_cassandra/rdd.py",
line 291
k = Row(**{c: row.__getattr__(c) for c in columns})
^
SyntaxError: invalid syntax
>>>
```
- **yarn-client mode doens't copy pyFiles** as you can see
[here](https://github.com/apache/spark/blob/master/core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala#L354-L357)
```scala
// If we're running a python app, set the main class to our specific
python runner
if (args.isPython && deployMode == CLIENT) {
...
if (clusterManager != YARN) {
// The YARN backend handles python files differently, so don't
merge the lists.
args.files = mergeFileLists(args.files, args.pyFiles)
}
```
## Summary
@zjffdu @felixcheung
1. I am not sure why they decided not to copy py-files in yarn-client mode.
But it's problem of spark, not zeppelin.
2. As you saw, this is **expected behavior** at least in local,
mesos-client.
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