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question about partition table in hive - Hive - [mail # user]
...hi,all:         i use flume collect log data and put it in hdfs ,i want to use hive to do some caculate, query based on timerange,i want to use parttion table , but the d...
   Author: ch huang, 2013-09-13, 01:55
very quick if i query hdfs data ,but very slow when i query hbase data ,why? - Hive - [mail # user]
...hi,all:    i have a question ,when my table data is on hdfs,it's very quick,but when table data on hbase ,it's very slow when i query use hive,why?...
   Author: ch huang, 2013-09-11, 05:45
high gc time ,how do tuning? - Hive - [mail # user]
...hive> select page_url,concat_ws('&', map_keys(UNION_MAP(MAP(first_category,'fcategory')))) as fcategorys , token,concat_ws('&', map_keys(UNION_MAP(MAP(concat(original_category,',',weight)...
   Author: ch huang, 2013-08-22, 03:22
execute hive query error "Error: GC overhead limit exceeded" - Hive - [mail # user]
...HI,ALL: i execute a query ,but error,any one know what happened? BTW i use yarn framework  2013-08-22 09:47:09,893 Stage-1 map = 28%,  reduce = 1%, Cumulative CPU 4140.64 sec 2013-...
   Author: ch huang, 2013-08-22, 02:06
question about hive SQL - Hive - [mail # user]
...hi,all:        i do not very familar with HQL, and my problem is ,now i have 2 queries   Q1: select page_url, original_category,token from media_visit_info group by ...
   Author: ch huang, 2013-08-19, 09:04
question about get part result from hive - Hive - [mail # user]
...hi,all:       i have a problem ,i have a hive table ,it source data based on HDFS,and i want to get part query result for processing(the whole data is huge,so must load partly...
   Author: ch huang, 2013-08-19, 03:16
can hive do paging query result? - Hive - [mail # user]
...the limit cause has no offset option,how to page result query by hive?...
   Author: ch huang, 2013-08-19, 02:46
[expand - 1 more] - Re: how to let hive support lzo - Hive - [mail # user]
...# hbase org.apache.hadoop.hbase.util.CompressionTest hdfs://CH22:9000/alex/my.txt lzo 13/07/22 13:27:58 WARN conf.Configuration: hadoop.native.lib is deprecated. Instead, use io.native.lib.a...
   Author: ch huang, 2013-07-22, 05:41
error in running hive query - Hive - [mail # user]
...why the task failed? anyone can help?   hive> select cookieid,count(url) as visit_num from alex_test_big_seq group by cookieid order by visit_num desc limit 10;  MapReduce Total...
   Author: ch huang, 2013-07-19, 09:22
can partition and bucket used on external table? - Hive - [mail # user]
...ATT...
   Author: ch huang, 2013-07-19, 02:24
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB