Hi ，some suggestions
You didn’t need to “instruct data within the same hourly tenth to the same
bolt” ， just write the entries within the same hourly tenth(6 min) to the
same hdfs directory .
Because hive partition locates to one hdfs directory ,not one hdfs file .
thks
ding
发件人: Chen Wang [mailto:[email protected]]
发送时间: 2014年1月8日 7:47
收件人: [email protected]
主题: write to the same file in bolt?
Hey Guys,
I am using storm to read data from our socket server, entry by entry. Each
entry has a time stamp. In my bolt, i will need to write the entries within the
same hourly tenth(6 min) to the same hdfs file, so that later i can load them
to hive. (with hourly tenth 6min as the partition).
In order to achieve that, i will either need
1 instruct data within the same hourly tenth to the same bolt
or 2. share the same file writer for all bolts that deal with data within the
same hourly tenth.
How can I achieve this? or if there is some other approach for this problem?
Thank you very much!
Chen
