Question

我想使用PIG join 3表然后加载到Hive表中。在存储数据之前，我可以使用dump在屏幕上显示数据。我使用下面的命令来存储数据，它失败了。

store jnr_mas_ins INTO 'table_name' USING org.apache.hive.hcatalog.pig.HCatStorer();

错误是：

2017-01-25 10:58:48,487 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1002: Unable to store alias jnr_mas_ins
Details at logfile: /export/home/pig_1485359450881.log

我搜索了这个网站，有人建议使用以下命令：

store jnr_mas_ins INTO 'hdfs://fullpath' USING org.apache.hive.hcatalog.pig.HCatStorer();


001 : Error setting output information. Cause : NoSuchObjectException(message:default.hdfs://fullpath table not found)
Details at logfile: /export/home/pig_1485359450881.log

请您帮忙解决这个问题，提前谢谢下面是我用来填充表格的脚本。

account_master_ALL = LOAD＆＃39; ACCT＆＃39;使用org.apache.hive.hcatalog.pig.HCatLoader（）; account_master_fil =过滤帐号_master_ALL by croft_source_sys_cd ==＆＃39;＆＃39; ABC＆＃39;＆＃39; account_master = foreach account_master_fil生成acct_master_key，（trans_date为空？＆＃39; -999＆＃39;：trans_date）为trans_date，（acct_data_1为空？＆＃39; -999＆＃39;：acct_data_1）为acct_data_1，（acct_data_2为null？＆＃39; -999＆＃39;：acct_data_2）作为acct_data_2，（acct_data_3为空？＆＃39; -999＆＃39;：acct_data_3）为acct_data_3，（acct_data_4为空？＆＃39; -999＆＃39 ;：acct_data_4）作为acct_data_4，（acct_data_5为空？＆＃39; -999＆＃39;：acct_data_5）为acct_data_5，acct_m_ref_key，croft_source_sys_cd; acct_detail_all = LOAD＆＃39; acct_detail_tb＆＃39;使用org.apache.hive.hcatalog.pig.HCatLoader（）; acct_detail = foreach acct_detail_all生成c_number，b_number，a_number，c_coded，a_type，c_digit，s_number，r_type，r_cd，s_qty，pipes_cost，trade_qty，t_cost，p_date，load_date; jnr_all =通过（a_number，b_number，c_coded，a_type，c_number，c_digit），account_master通过（acct_data_1，trans_date，acct_data_2，acct_data_3，acct_data_4，acct_data_5）加入acct_detail; ins_master_all = LOAD＆＃39; ins_acct＆＃39;使用org.apache.hive.hcatalog.pig.HCatLoader（）; jnr_mas_ins_all =通过（acct_detail :: s_number）加入jnr_all，通过（acct_data_1）加入ins_master_all; jnr_mas_ins = foreach jnr_mas_ins_all生成acct_master_key为acct_master_key，ins_master_key为ins_master_key，＆＃39; ABC＆＃39;作为code_dev，c_number作为c_number，b_number作为b_number，a_number作为src_a_number，c_coded作为c_coded，a_type作为c_digit，c_digit作为c_digit，s_number作为s_number，r_type作为r_type，r_cd作为r_cd，s_qty作为s_qty，pipes_cost作为pipes_cost，trade_qty作为trade_qty ，t_cost为t_cost，p_date为p_date，CurrentTime（）为load_date，＆＃39; PIG_USER＆＃39; as create_userid，CurrentTime（）as create_date，CurrentTime（）as f_date; 存储jnr_mas_ins INTO＆＃39; tartet_table＆＃39;使用org.apache.hive.hcatalog.pig.HCatStorer（）;

Answer 1

您似乎错过了关系jnr_mas_ins_all。这来自哪里？jnr_mas_ins将是emtpy，因为没有关系jnr_mas_ins_all。它应该是ins_master_all？

ins_master_all = LOAD 'ins_acct' USING org.apache.hive.hcatalog.pig.HCatLoader();
jnr_mas_ins = foreach jnr_mas_ins_all generate acct_master_key as acct_master_key, ins_master_key as ins_master_key, 'ABC' as code_dev, c_number as c_number, b_number as b_number, a_number as src_a_number, c_coded as c_coded, a_type as a_type, c_digit as c_digit, s_number as s_number, r_type as r_type, r_cd as r_cd, s_qty as s_qty, s_b_cost as s_b_cost, trade_qty as trade_qty, t_cost as t_cost, p_date as p_date, CurrentTime() as load_date, 'PIG_USER' as create_userid, CurrentTime() as create_date, CurrentTime() as f_date;

使用PIG加载Hive表的问题

1 个答案: