On 11/6/14, 11:09 AM, Kostas Tzoumas wrote:
I am running into the same error [1] with plain Tez (not Hive):
Any advice on what configuration parameters I should start looking at?
Both issues are related to the Tez memory distributor
(InitialMemoryAllocator) impl used.
http://tez.apache.org/releases/0.5.1/tez-runtime-library-javadocs/org/apache/tez/runtime/library/resources/WeightedScalingMemoryDistributor.html
This divides memory up between different inputs and outputs, so that the
overall memory usage is capped without hitting GC issues.
Suma's issue was probably that tez-0.4 (ergo, hive-13) didn't have a
memory distributor implementation.
http://people.apache.org/~gopalv/tpch-plans/q8_national_market_share.svg
This means that Reducer_4 in that can divvy up memory between these
buffers up.
OrderedGroupedKVInputConfig::setShuffleBufferFraction() allows this
particular tuning per input edge.
For a shuffle JOIN, you can tune the left and right hand side of the
buffers, as well as make reservations for the actual map-join in memory,
so that the plan's cost information can help the memory scheduling Tez has.
Cheers,
Gopal
[1] java.lang.OutOfMemoryError: Java heap space
at
org.apache.hadoop.io.BoundedByteArrayOutputStream.<init>(BoundedByteArrayOutputStream.java:56)
at
org.apache.hadoop.io.BoundedByteArrayOutputStream.<init>(BoundedByteArrayOutputStream.java:46)
at
org.apache.tez.runtime.library.common.shuffle.MemoryFetchedInput.<init>(MemoryFetchedInput.java:38)
at
org.apache.tez.runtime.library.common.shuffle.impl.SimpleFetchedInputAllocator.allocate(SimpleFetchedInputAllocator.java:139)
at
org.apache.tez.runtime.library.common.shuffle.Fetcher.fetchInputs(Fetcher.java:713)
at
org.apache.tez.runtime.library.common.shuffle.Fetcher.doHttpFetch(Fetcher.java:485)
at
org.apache.tez.runtime.library.common.shuffle.Fetcher.doHttpFetch(Fetcher.java:394)
at
org.apache.tez.runtime.library.common.shuffle.Fetcher.call(Fetcher.java:189)
at
org.apache.tez.runtime.library.common.shuffle.Fetcher.call(Fetcher.java:71)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
On Tue, Aug 26, 2014 at 4:26 PM, Suma Shivaprasad <
sumasai.shivapra...@gmail.com> wrote:
Am using Tez 0.4.0 and counters for the query run are as below
2014-08-26 14:06:41,203 INFO [Thread-13]: exec.Task
(TezTask.java:execute(171)) - org.apache.tez.common.counters.DAGCounter:
2014-08-26 14:06:41,205 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - NUM_FAILED_TASKS: 67
2014-08-26 14:06:41,205 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - NUM_KILLED_TASKS: 312
2014-08-26 14:06:41,205 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - TOTAL_LAUNCHED_TASKS: 259
2014-08-26 14:06:41,205 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - DATA_LOCAL_TASKS: 59
2014-08-26 14:06:41,205 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - RACK_LOCAL_TASKS: 27
2014-08-26 14:06:41,207 INFO [Thread-13]: exec.Task
(TezTask.java:execute(171)) - File System Counters:
2014-08-26 14:06:41,208 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - FILE: BYTES_READ: 0
2014-08-26 14:06:41,208 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - FILE: BYTES_WRITTEN: 3201156949
2014-08-26 14:06:41,208 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - FILE: READ_OPS: 0
2014-08-26 14:06:41,209 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - FILE: LARGE_READ_OPS: 0
2014-08-26 14:06:41,209 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - FILE: WRITE_OPS: 0
2014-08-26 14:06:41,209 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - HDFS: BYTES_READ: 30052072845
2014-08-26 14:06:41,209 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - HDFS: BYTES_WRITTEN: 0
2014-08-26 14:06:41,209 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - HDFS: READ_OPS: 768
2014-08-26 14:06:41,209 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - HDFS: LARGE_READ_OPS: 0
2014-08-26 14:06:41,209 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - HDFS: WRITE_OPS: 0
2014-08-26 14:06:41,211 INFO [Thread-13]: exec.Task
(TezTask.java:execute(171)) - org.apache.tez.common.counters.TaskCounter:
2014-08-26 14:06:41,211 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - GC_TIME_MILLIS: 148639
2014-08-26 14:06:41,211 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - CPU_MILLISECONDS: 1420020
2014-08-26 14:06:41,211 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - PHYSICAL_MEMORY_BYTES: 304725393408
2014-08-26 14:06:41,211 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - VIRTUAL_MEMORY_BYTES: 440084279296
2014-08-26 14:06:41,212 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - COMMITTED_HEAP_BYTES: 337806557184
2014-08-26 14:06:41,212 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - INPUT_RECORDS_PROCESSED: 722420718
2014-08-26 14:06:41,212 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - OUTPUT_RECORDS: 144488481
2014-08-26 14:06:41,212 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - OUTPUT_BYTES: 6876509984
2014-08-26 14:06:41,212 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - OUTPUT_BYTES_WITH_OVERHEAD: 7165487118
2014-08-26 14:06:41,212 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - OUTPUT_BYTES_PHYSICAL: 3201154197
2014-08-26 14:06:41,212 INFO [Thread-13]: exec.Task
(TezTask.java:execute(171)) -
org.apache.hadoop.hive.ql.exec.FilterOperator$Counter:
2014-08-26 14:06:41,212 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - FILTERED: 863123081
2014-08-26 14:06:41,212 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - PASSED: 215782564
2014-08-26 14:06:41,212 INFO [Thread-13]: exec.Task
(TezTask.java:execute(171)) -
org.apache.hadoop.hive.ql.exec.MapOperator$Counter:
2014-08-26 14:06:41,212 INFO [Thread-13]: exec.Task
(TezTask.java:execute(173)) - DESERIALIZE_ERRORS: 0
Thanks
Suma
On Tue, Aug 26, 2014 at 7:47 PM, Suma Shivaprasad <
sumasai.shivapra...@gmail.com> wrote:
> Trying to run a query on Tez with the following configurations
>
>
> *set hive.tez.container.size=5120*
> *set mapreduce.map.child.java.opts=-Xmx5120M*
> *set hive.tez.java.opts=-Xmx4096M*
> *set hive.auto.convert.join.noconditionaltask.size=805306000*
> *set tez.am.resource.memory.mb=5120*
> *set tez.am.java.opts=-Xmx4096M*
>
> The above config settings were set after running
>
https://github.com/hortonworks/hdp-configuration-utils/blob/master/2.1/hdp-configuration-utils.py
> to get the right memory configs
>
> Tried with both
>
> set tez.runtime.io.sort.mb=512
> set mapreduce.task.io.sort.mb=512
>
> and
>
> set tez.runtime.io.sort.mb=2048
> set mapreduce.task.io.sort.mb=2048
>
>
> The query I am trying run is
>
> *select sum(tab1.m1),sum(tab1.m2)*
> * from tab1 join tab2 dm on tab1.col1=tab2.col1*
> * where tab1.dt = '2014-06-01' *
> * and tab2.col2 = '..'*
> * and tab2.col3 IN ('..')*
> * group by TAB1.col1*
>
> *where TAB1.col1 has high cardinality(around 700- 800 million)*
>
> And its going OOM during shuffle phase.
>
> errorMessage=Fetch failed
> Container released by application,
> AttemptID:attempt_1407396011310_1577_1_01_000000_4 Info:Error:
> exceptionThrown=java.lang.OutOfMemoryError: Java heap space
> at
>
org.apache.hadoop.io.BoundedByteArrayOutputStream.<init>(BoundedByteArrayOutputStream.java:56)
> at
>
org.apache.hadoop.io.BoundedByteArrayOutputStream.<init>(BoundedByteArrayOutputStream.java:46)
> at
>
org.apache.tez.runtime.library.shuffle.common.MemoryFetchedInput.<init>(MemoryFetchedInput.java:38)
> at
>
org.apache.tez.runtime.library.shuffle.common.impl.SimpleFetchedInputAllocator.allocate(SimpleFetchedInputAllocator.java:137)
> at
>
org.apache.tez.runtime.library.shuffle.common.Fetcher.fetchInputs(Fetcher.java:252)
> at
>
org.apache.tez.runtime.library.shuffle.common.Fetcher.call(Fetcher.java:184)
> at
>
org.apache.tez.runtime.library.shuffle.common.Fetcher.call(Fetcher.java:59)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
> at java.util.concurrent.FutureTask.run(FutureTask.java:138)
> at
>
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> at
>
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> at java.lang.Thread.run(Thread.java:662)
>
>
> Please advice if the configurations look ok? Do I need to change
anything?
>
>
>
> Thanks
> Suma
>
>
>
