Hi Akhil,
It works fine when outprefix is a hdfs:///localhost/... url.
It looks to me as if there is something about spark writing to the same s3
bucket it is reading from.
That is the only real difference between the 2 saveAsTextFile whet
outprefix is on s3,
inpath is also on s3 but in a different bucket, but jsonRaw and jsonClean
are distinct directories in the same bucket.
I do know know why that should be a problem though.
I will rerun using s3 paths and send the log information.
thanks
Daniel
thanks
Daniel
On Wed, Apr 22, 2015 at 1:45 AM, Akhil Das <ak...@sigmoidanalytics.com>
wrote:
> Can you look in your worker logs and see whats happening in there? Are you
> able to write the same to your HDFS?
>
> Thanks
> Best Regards
>
> On Wed, Apr 22, 2015 at 4:45 AM, Daniel Mahler <dmah...@gmail.com> wrote:
>
>> I am having a strange problem writing to s3 that I have distilled to this
>> minimal example:
>>
>> def jsonRaw = s"${outprefix}-json-raw"
>> def jsonClean = s"${outprefix}-json-clean"
>>
>> val txt = sc.textFile(inpath)//.coalesce(shards, false)
>> txt.count
>>
>> val res = txt.saveAsTextFile(jsonRaw)
>>
>> val txt2 = sc.textFile(jsonRaw +"/part-*")
>> txt2.count
>>
>> txt2.saveAsTextFile(jsonClean)
>>
>> This code should simply copy files from inpath to jsonRaw and then from
>> jsonRaw to jsonClean.
>> This code executes all the way down to the last line where it hangs after
>> creating the output directory contatining a _temporary_$folder but no
>> actual files not even temporary ones.
>>
>> `outputprefix` is and bucket url, both jsonRaw and jsonClean are in the
>> same bucket.
>> Both calls .count succeed and return the same number. This means Spark
>> can read from inpath and can both read from and write to jsonRaw. Since
>> jsonClean is in the same bucket as jsonRaw and the final line does create
>> the directory, I cannot think of any reason why the files should not be
>> written. If there were any access or url problems they should already
>> manifest when writing jsonRaw.
>>
>> This problem is completely reproduceable with Spark 1.2.1 and 1.3.1
>> The console output from the last line is
>>
>> scala> txt0.saveAsTextFile(jsonClean)
>> 15/04/21 22:55:48 INFO storage.BlockManager: Removing broadcast 3
>> 15/04/21 22:55:48 INFO storage.BlockManager: Removing block
>> broadcast_3_piece0
>> 15/04/21 22:55:48 INFO storage.MemoryStore: Block broadcast_3_piece0 of
>> size 2024 dropped from memory (free 278251716)
>> 15/04/21 22:55:48 INFO storage.BlockManagerInfo: Removed
>> broadcast_3_piece0 on ip-10-51-181-81.ec2.internal:45199 in memory (size:
>> 2024.0 B, free: 265.4 MB)
>> 15/04/21 22:55:48 INFO storage.BlockManagerMaster: Updated info of block
>> broadcast_3_piece0
>> 15/04/21 22:55:48 INFO storage.BlockManager: Removing block broadcast_3
>> 15/04/21 22:55:48 INFO storage.MemoryStore: Block broadcast_3 of size
>> 2728 dropped from memory (free 278254444)
>> 15/04/21 22:55:48 INFO storage.BlockManagerInfo: Removed
>> broadcast_3_piece0 on ip-10-166-129-153.ec2.internal:46671 in memory (size:
>> 2024.0 B, free: 13.8 GB)
>> 15/04/21 22:55:48 INFO storage.BlockManagerInfo: Removed
>> broadcast_3_piece0 on ip-10-51-153-34.ec2.internal:51691 in memory (size:
>> 2024.0 B, free: 13.8 GB)
>> 15/04/21 22:55:48 INFO storage.BlockManagerInfo: Removed
>> broadcast_3_piece0 on ip-10-158-142-155.ec2.internal:54690 in memory (size:
>> 2024.0 B, free: 13.8 GB)
>> 15/04/21 22:55:48 INFO storage.BlockManagerInfo: Removed
>> broadcast_3_piece0 on ip-10-61-144-7.ec2.internal:44849 in memory (size:
>> 2024.0 B, free: 13.8 GB)
>> 15/04/21 22:55:48 INFO storage.BlockManagerInfo: Removed
>> broadcast_3_piece0 on ip-10-69-77-180.ec2.internal:42417 in memory (size:
>> 2024.0 B, free: 13.8 GB)
>> 15/04/21 22:55:48 INFO spark.ContextCleaner: Cleaned broadcast 3
>> 15/04/21 22:55:49 INFO spark.SparkContext: Starting job: saveAsTextFile
>> at <console>:38
>> 15/04/21 22:55:49 INFO scheduler.DAGScheduler: Got job 2 (saveAsTextFile
>> at <console>:38) with 96 output partitions (allowLocal=false)
>> 15/04/21 22:55:49 INFO scheduler.DAGScheduler: Final stage: Stage
>> 2(saveAsTextFile at <console>:38)
>> 15/04/21 22:55:49 INFO scheduler.DAGScheduler: Parents of final stage:
>> List()
>> 15/04/21 22:55:49 INFO scheduler.DAGScheduler: Missing parents: List()
>> 15/04/21 22:55:49 INFO scheduler.DAGScheduler: Submitting Stage 2
>> (MapPartitionsRDD[5] at saveAsTextFile at <console>:38), which has no
>> missing parents
>> 15/04/21 22:55:49 INFO storage.MemoryStore: ensureFreeSpace(22248) called
>> with curMem=48112, maxMem=278302556
>> 15/04/21 22:55:49 INFO storage.MemoryStore: Block broadcast_4 stored as
>> values in memory (estimated size 21.7 KB, free 265.3 MB)
>> 15/04/21 22:55:49 INFO storage.MemoryStore: ensureFreeSpace(17352) called
>> with curMem=70360, maxMem=278302556
>> 15/04/21 22:55:49 INFO storage.MemoryStore: Block broadcast_4_piece0
>> stored as bytes in memory (estimated size 16.9 KB, free 265.3 MB)
>> 15/04/21 22:55:49 INFO storage.BlockManagerInfo: Added broadcast_4_piece0
>> in memory on ip-10-51-181-81.ec2.internal:45199 (size: 16.9 KB, free: 265.4
>> MB)
>> 15/04/21 22:55:49 INFO storage.BlockManagerMaster: Updated info of block
>> broadcast_4_piece0
>> 15/04/21 22:55:49 INFO spark.SparkContext: Created broadcast 4 from
>> broadcast at DAGScheduler.scala:839
>> 15/04/21 22:55:49 INFO scheduler.DAGScheduler: Submitting 96 missing
>> tasks from Stage 2 (MapPartitionsRDD[5] at saveAsTextFile at <console>:38)
>> 15/04/21 22:55:49 INFO scheduler.TaskSchedulerImpl: Adding task set 2.0
>> with 96 tasks
>> 15/04/21 22:55:49 INFO scheduler.TaskSetManager: Starting task 0.0 in
>> stage 2.0 (TID 192, ip-10-166-129-153.ec2.internal, PROCESS_LOCAL, 1377
>> bytes)
>> 15/04/21 22:55:49 INFO scheduler.TaskSetManager: Starting task 1.0 in
>> stage 2.0 (TID 193, ip-10-61-144-7.ec2.internal, PROCESS_LOCAL, 1377 bytes)
>> 15/04/21 22:55:49 INFO scheduler.TaskSetManager: Starting task 2.0 in
>> stage 2.0 (TID 194, ip-10-158-142-155.ec2.internal, PROCESS_LOCAL, 1377
>> bytes)
>> 15/04/21 22:55:49 INFO scheduler.TaskSetManager: Starting task 3.0 in
>> stage 2.0 (TID 195, ip-10-69-77-180.ec2.internal, PROCESS_LOCAL, 1377 bytes)
>> 15/04/21 22:55:49 INFO scheduler.TaskSetManager: Starting task 4.0 in
>> stage 2.0 (TID 196, ip-10-51-153-34.ec2.internal, PROCESS_LOCAL, 1377 bytes)
>> 15/04/21 22:55:49 INFO scheduler.TaskSetManager: Starting task 5.0 in
>> stage 2.0 (TID 197, ip-10-166-129-153.ec2.internal, PROCESS_LOCAL, 1377
>> bytes)
>> 15/04/21 22:55:49 INFO scheduler.TaskSetManager: Starting task 6.0 in
>> stage 2.0 (TID 198, ip-10-61-144-7.ec2.internal, PROCESS_LOCAL, 1377 bytes)
>> 15/04/21 22:55:49 INFO scheduler.TaskSetManager: Starting task 7.0 in
>> stage 2.0 (TID 199, ip-10-158-142-155.ec2.internal, PROCESS_LOCAL, 1377
>> bytes)
>> 15/04/21 22:55:49 INFO scheduler.TaskSetManager: Starting task 8.0 in
>> stage 2.0 (TID 200, ip-10-69-77-180.ec2.internal, PROCESS_LOCAL, 1377 bytes)
>> 15/04/21 22:55:49 INFO scheduler.TaskSetManager: Starting task 9.0 in
>> stage 2.0 (TID 201, ip-10-51-153-34.ec2.internal, PROCESS_LOCAL, 1377 bytes)
>> 15/04/21 22:55:49 INFO scheduler.TaskSetManager: Starting task 10.0 in
>> stage 2.0 (TID 202, ip-10-166-129-153.ec2.internal, PROCESS_LOCAL, 1377
>> bytes)
>> 15/04/21 22:55:49 INFO scheduler.TaskSetManager: Starting task 11.0 in
>> stage 2.0 (TID 203, ip-10-61-144-7.ec2.internal, PROCESS_LOCAL, 1377 bytes)
>> 15/04/21 22:55:49 INFO scheduler.TaskSetManager: Starting task 12.0 in
>> stage 2.0 (TID 204, ip-10-158-142-155.ec2.internal, PROCESS_LOCAL, 1377
>> bytes)
>> 15/04/21 22:55:49 INFO scheduler.TaskSetManager: Starting task 13.0 in
>> stage 2.0 (TID 205, ip-10-69-77-180.ec2.internal, PROCESS_LOCAL, 1377 bytes)
>> 15/04/21 22:55:49 INFO scheduler.TaskSetManager: Starting task 14.0 in
>> stage 2.0 (TID 206, ip-10-51-153-34.ec2.internal, PROCESS_LOCAL, 1377 bytes)
>> 15/04/21 22:55:49 INFO scheduler.TaskSetManager: Starting task 15.0 in
>> stage 2.0 (TID 207, ip-10-166-129-153.ec2.internal, PROCESS_LOCAL, 1377
>> bytes)
>> 15/04/21 22:55:49 INFO scheduler.TaskSetManager: Starting task 16.0 in
>> stage 2.0 (TID 208, ip-10-61-144-7.ec2.internal, PROCESS_LOCAL, 1377 bytes)
>> 15/04/21 22:55:49 INFO scheduler.TaskSetManager: Starting task 17.0 in
>> stage 2.0 (TID 209, ip-10-158-142-155.ec2.internal, PROCESS_LOCAL, 1377
>> bytes)
>> 15/04/21 22:55:49 INFO scheduler.TaskSetManager: Starting task 18.0 in
>> stage 2.0 (TID 210, ip-10-69-77-180.ec2.internal, PROCESS_LOCAL, 1377 bytes)
>> 15/04/21 22:55:49 INFO scheduler.TaskSetManager: Starting task 19.0 in
>> stage 2.0 (TID 211, ip-10-51-153-34.ec2.internal, PROCESS_LOCAL, 1377 bytes)
>> 15/04/21 22:55:49 INFO storage.BlockManagerInfo: Added broadcast_4_piece0
>> in memory on ip-10-61-144-7.ec2.internal:44849 (size: 16.9 KB, free: 13.8
>> GB)
>> 15/04/21 22:55:49 INFO storage.BlockManagerInfo: Added broadcast_4_piece0
>> in memory on ip-10-69-77-180.ec2.internal:42417 (size: 16.9 KB, free: 13.8
>> GB)
>> 15/04/21 22:55:49 INFO storage.BlockManagerInfo: Added broadcast_4_piece0
>> in memory on ip-10-158-142-155.ec2.internal:54690 (size: 16.9 KB, free:
>> 13.8 GB)
>> 15/04/21 22:55:49 INFO storage.BlockManagerInfo: Added broadcast_4_piece0
>> in memory on ip-10-166-129-153.ec2.internal:46671 (size: 16.9 KB, free:
>> 13.8 GB)
>> 15/04/21 22:55:49 INFO storage.BlockManagerInfo: Added broadcast_4_piece0
>> in memory on ip-10-51-153-34.ec2.internal:51691 (size: 16.9 KB, free: 13.8
>> GB)
>>
>> This feels like I am missing something really basic.
>>
>> thanks
>> Daniel
>>
>
>
