At 2017-03-25 18:52:07, "Liang Chen" <chenliang6...@gmail.com> wrote:
>Hi
>
>Please provide all columns' cardinality info(distinct value).
>
>Regards
>Liang
>
>
>ww...@163.com wrote
>> Hello!
>>
>> 0、The failure
>> When i insert into carbon table，i encounter failure。The failure is as
>> follow:
>> Job aborted due to stage failure: Task 0 in stage 2.0 failed 4 times, most
>> recent failure: Lost task 0.3 in stage 2.0 (TID 1007, hd26):
>> ExecutorLostFailure (executor 1 exited caused by one of the running tasks)
>> Reason: Slave lost+details
>> Job aborted due to stage failure: Task 0 in stage 2.0 failed 4 times, most
>> recent failure: Lost task 0.3 in stage 2.0 (TID 1007, hd26):
>> ExecutorLostFailure (executor 1 exited caused by one of the running tasks)
>> Reason: Slave lost
>> Driver stacktrace:
>> the stage:
>>
>> Step:
>> 1、start spark－shell
>> ./bin/spark-shell \
>> --master yarn-client \
>> --num-executors 5 \ (I tried to set this parameter range from 10 to
>> 20,but the second job has only 5 tasks)
>> --executor-cores 5 \
>> --executor-memory 20G \
>> --driver-memory 8G \
>> --queue root.default \
>> --jars /xxx.jar
>>
>> //spark-default.conf spark.default.parallelism=320
>>
>> import org.apache.spark.sql.CarbonContext
>> val cc = new CarbonContext(sc, "hdfs://xxxx/carbonData/CarbonStore")
>>
>> 2、create table
>> cc.sql("CREATE TABLE IF NOT EXISTS xxxx_table (dt String,pt String,lst
>> String,plat String,sty String,is_pay String,is_vip String,is_mpack
>> String,scene String,status String,nw String,isc String,area String,spttag
>> String,province String,isp String,city String,tv String,hwm String,pip
>> String,fo String,sh String,mid String,user_id String,play_pv Int,spt_cnt
>> Int,prg_spt_cnt Int) row format delimited fields terminated by '|' STORED
>> BY 'carbondata' TBLPROPERTIES
>> ('DICTIONARY_EXCLUDE'='pip,sh,mid,fo,user_id','DICTIONARY_INCLUDE'='dt,pt,lst,plat,sty,is_pay,is_vip,is_mpack,scene,status,nw,isc,area,spttag,province,isp,city,tv,hwm','NO_INVERTED_INDEX'='lst,plat,hwm,pip,sh,mid','BUCKETNUMBER'='10','BUCKETCOLUMNS'='fo')")
>>
>>
>> //notes，set "fo" column BUCKETCOLUMNS is to join another table
>> //the column distinct values are as follows:
>>
>>
>> 3、insert into table（xxxx_table_tmp is a hive extenal orc table，has 20
>> 0000 0000 records）
>> cc.sql("insert into xxxx_table select
>> dt,pt,lst,plat,sty,is_pay,is_vip,is_mpack,scene,status,nw,isc,area,spttag,province,isp,city,tv,hwm,pip,fo,sh,mid,user_id
>> ,play_pv,spt_cnt,prg_spt_cnt from xxxx_table_tmp where dt='2017-01-01'")
>>
>> 4、spark split sql into two jobs，the first finished succeeded, but the
>> second failed:
>>
>>
>> 5、The second job stage:
>>
>>
>>
>> Question:
>> 1、Why the second job has only five jobs,but the first job has 994 jobs ?(
>> note:My hadoop cluster has 5 datanode）
>> I guess it caused the failure
>> 2、In the sources,i find DataLoadPartitionCoalescer.class，is it means that
>> "one datanode has only one partition ,and then the task is only one on the
>> datanode"?
>> 3、In the ExampleUtils class,"carbon.table.split.partition.enable" is set
>> as follow,but i can not find "carbon.table.split.partition.enable" in
>> other parts of the project。
>> I set "carbon.table.split.partition.enable" to true, but the second
>> job has only five jobs.How to use this property?
>> ExampleUtils :
>> // whether use table split partition
>> // true -> use table split partition, support multiple partition
>> loading
>> // false -> use node split partition, support data load by host
>> partition
>>
>> CarbonProperties.getInstance().addProperty("carbon.table.split.partition.enable",
>> "false")
>> 4、Insert into carbon table takes 3 hours ,but eventually failed 。How can i
>> speed it.
>> 5、in the spark-shell ,I tried to set this parameter range from 10 to
>> 20,but the second job has only 5 tasks
>> the other parameter executor-memory = 20G is enough?
>>
>> I need your help!Thank you very much!
>
>> wwyxg@
>
>>
>>
>
>> wwyxg@
>
>
>
>
>
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