The files specified through --files are localized by the init-container to /var/spark-data/spark-files by default. So in your case, the file should be located at /var/spark-data/spark-files/flights.csv locally in the container.
On Mon, Feb 26, 2018 at 10:51 AM, Jenna Hoole <jenna.ho...@gmail.com> wrote: > This is probably stupid user error, but I can't for the life of me figure > out how to access the files that are staged by the init-container. > > I'm trying to run the SparkR example data-manipulation.R which requires > the path to its datafile. I supply the hdfs location via --files and then > the full hdfs path. > > > --files hdfs://192.168.0.1:8020/user/jhoole/flights.csv > local:///opt/spark/examples/src/main/r/data-manipulation.R hdfs:// > 192.168.0.1:8020/user/jhoole/flights.csv > > The init-container seems to load my file. > > 18/02/26 18:29:09 INFO spark.SparkContext: Added file hdfs:// > 192.168.0.1:8020/user/jhoole/flights.csv at hdfs://192.168.0.1:8020/user/ > jhoole/flights.csv with timestamp 1519669749519 > > 18/02/26 18:29:09 INFO util.Utils: Fetching hdfs://192.168.0.1:8020/user/ > jhoole/flights.csv to /var/spark/tmp/spark-d943dae6- > 9b95-4df0-87a3-9f7978d6d4d2/userFiles-4112b7aa-b9e7-47a9- > bcbc-7f7a01f93e38/fetchFileTemp7872615076522023165.tmp > > However, I get an error that my file does not exist. > > Error in file(file, "rt") : cannot open the connection > > Calls: read.csv -> read.table -> file > > In addition: Warning message: > > In file(file, "rt") : > > cannot open file 'hdfs://192.168.0.1:8020/user/jhoole/flights.csv': No > such file or directory > > Execution halted > > Exception in thread "main" org.apache.spark.SparkUserAppException: User > application exited with 1 > > at org.apache.spark.deploy.RRunner$.main(RRunner.scala:104) > > at org.apache.spark.deploy.RRunner.main(RRunner.scala) > > If I try supplying just flights.csv, I get a different error > > --files hdfs://192.168.0.1:8020/user/jhoole/flights.csv > local:///opt/spark/examples/src/main/r/data-manipulation.R flights.csv > > Error: Error in loadDF : analysis error - Path does not exist: hdfs:// > 192.168.0.1:8020/user/root/flights.csv; > > Execution halted > > Exception in thread "main" org.apache.spark.SparkUserAppException: User > application exited with 1 > > at org.apache.spark.deploy.RRunner$.main(RRunner.scala:104) > > at org.apache.spark.deploy.RRunner.main(RRunner.scala) > > If the path /user/root/flights.csv does exist and I only supply > "flights.csv" as the file path, it runs to completion successfully. > However, if I provide the file path as "hdfs://192.168.0.1:8020/user/ > root/flights.csv," I get the same "No such file or directory" error as I > do initially. > > Since I obviously can't put all my hdfs files under /user/root, how do I > get it to use the file that the init-container is fetching? > > Thanks, > Jenna >
