hi,
my observation. so this process runs slow for the first time but when i
build cube next time it is completing in few minutes only. shareing the log
from second step.. looks like i am missing some mapreduce configuration here
1st attempt:
Counters: 52
File System Counters
FILE: Number of bytes read=1404339530
FILE: Number of bytes written=2100591948
FILE: Number of read operations=0
FILE: Number of large read operations=0
FILE: Number of write operations=0
HDFS: Number of bytes read=9312271
HDFS: Number of bytes written=520516128
HDFS: Number of read operations=59
HDFS: Number of large read operations=0
HDFS: Number of write operations=50
Job Counters
Killed map tasks=1
Killed reduce tasks=2
Launched map tasks=3
Launched reduce tasks=18
Data-local map tasks=3
Total time spent by all maps in occupied slots (ms)=357469920
Total time spent by all reduces in occupied slots
(ms)=3550570080
Total time spent by all map tasks (ms)=1489458
Total time spent by all reduce tasks (ms)=7397021
Total vcore-milliseconds taken by all map tasks=1489458
Total vcore-milliseconds taken by all reduce tasks=7397021
Total megabyte-milliseconds taken by all map tasks=11439037440
Total megabyte-milliseconds taken by all reduce
tasks=113618242560
Map-Reduce Framework
Map input records=368816
Map output records=104656
Map output bytes=1021571917
Map output materialized bytes=698471609
Input split bytes=6220
Combine input records=209310
Combine output records=209308
Reduce input groups=59717
Reduce shuffle bytes=698471609
Reduce input records=104654
Reduce output records=0
Spilled Records=313962
Shuffled Maps =34
Failed Shuffles=0
Merged Map outputs=34
GC time elapsed (ms)=5942
CPU time spent (ms)=1203260
Physical memory (bytes) snapshot=18783621120
Virtual memory (bytes) snapshot=279152558080
Total committed heap usage (bytes)=43746066432
Shuffle Errors
BAD_ID=0
CONNECTION=0
IO_ERROR=0
WRONG_LENGTH=0
WRONG_MAP=0
WRONG_REDUCE=0
File Input Format Counters
Bytes Read=0
File Output Format Counters
Bytes Written=0
org.apache.kylin.engine.mr.steps.FactDistinctColumnsMapper$RawDataCounter
BYTES=55368910
2nd attempt:
Counters: 51
File System Counters
FILE: Number of bytes read=8209556
FILE: Number of bytes written=25262878
FILE: Number of read operations=0
FILE: Number of large read operations=0
FILE: Number of write operations=0
HDFS: Number of bytes read=9336990
HDFS: Number of bytes written=1747432
HDFS: Number of read operations=87
HDFS: Number of large read operations=0
HDFS: Number of write operations=50
Job Counters
Killed reduce tasks=1
Launched map tasks=9
Launched reduce tasks=17
Data-local map tasks=9
Total time spent by all maps in occupied slots (ms)=17504880
Total time spent by all reduces in occupied slots (ms)=36970080
Total time spent by all map tasks (ms)=72937
Total time spent by all reduce tasks (ms)=77021
Total vcore-milliseconds taken by all map tasks=72937
Total vcore-milliseconds taken by all reduce tasks=77021
Total megabyte-milliseconds taken by all map tasks=560156160
Total megabyte-milliseconds taken by all reduce tasks=1183042560
Map-Reduce Framework
Map input records=368816
Map output records=90281
Map output bytes=12469333
Map output materialized bytes=8850914
Input split bytes=27990
Combine input records=90281
Combine output records=90272
Reduce input groups=27059
Reduce shuffle bytes=8850914
Reduce input records=90272
Reduce output records=0
Spilled Records=180544
Shuffled Maps =153
Failed Shuffles=0
Merged Map outputs=153
GC time elapsed (ms)=11067
CPU time spent (ms)=207100
Physical memory (bytes) snapshot=24891486208
Virtual memory (bytes) snapshot=339687297024
Total committed heap usage (bytes)=63315640320
Shuffle Errors
BAD_ID=0
CONNECTION=0
IO_ERROR=0
WRONG_LENGTH=0
WRONG_MAP=0
WRONG_REDUCE=0
File Input Format Counters
Bytes Read=0
File Output Format Counters
Bytes Written=0
org.apache.kylin.engine.mr.steps.FactDistinctColumnsMapper$RawDataCounter
BYTES=55368910
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