失败使用ARGV

HBASE shell脚本我运行失败以下HBASE shell脚本，我想不通为什么：失败使用ARGV

import org.apache.hadoop.hbase.filter.CompareFilter 
import org.apache.hadoop.hbase.filter.SubstringComparator 
a = ARGV[0] 
myscan="'dcqa_event_agg', {FILTER => org.apache.hadoop.hbase.filter.RowFilter.new(CompareFilter::CompareOp.valueOf('EQUAL'),SubstringComparator.new('" + a + "'))}" + "\n" 
scan myscan 
exit 

的dcqa_event_agg行存在。当我运行命令：

hbase shell filtertest.rb 2013 

我得到以下错误：

ERROR: Unknown table 'dcqa_event_agg', {FILTER => org.apache.hadoop.hbase.filter.RowFilter.new(CompareFilter::CompareOp.valueOf('EQUAL'),SubstringComparator.new('2013'))} 

当我直接在HBASE shell中运行该脚本，它工作正常。有任何想法吗？

我加了一些调试shell脚本：

import org.apache.hadoop.hbase.filter.CompareFilter 
import org.apache.hadoop.hbase.filter.SubstringComparator 
a = ARGV[0] 
myscan="'dcqa_event_agg', {FILTER => org.apache.hadoop.hbase.filter.RowFilter.new(CompareFilter::CompareOp.valueOf('EQUAL'),SubstringComparator.new('" + a + "'))}" 
print myscan + "\n" 
print "scan " + myscan + "\n" 
scan myscan 
exit 

这是输出：

[test ~]$ hbase shell filtertest.rb 2013 
13/08/23 18:08:44 WARN conf.Configuration: hadoop.native.lib is deprecated. Instead, use io.native.lib.available 
'dcqa_event_agg', {FILTER => org.apache.hadoop.hbase.filter.RowFilter.new(CompareFilter::CompareOp.valueOf('EQUAL'),SubstringComparator.new('2013'))} 
scan 'dcqa_event_agg', {FILTER => org.apache.hadoop.hbase.filter.RowFilter.new(CompareFilter::CompareOp.valueOf('EQUAL'),SubstringComparator.new('2013'))} 
ERROR: Unknown table 'dcqa_event_agg', {FILTER => org.apache.hadoop.hbase.filter.RowFilter.new(CompareFilter::CompareOp.valueOf('EQUAL'),SubstringComparator.new('2013'))}! 

卸下报价没有解决它。

如果我在运行HBase的shell环境的命令：

import org.apache.hadoop.hbase.filter.CompareFilter 
import org.apache.hadoop.hbase.filter.SubstringComparator 
scan 'dcqa_event_agg', {FILTER => org.apache.hadoop.hbase.filter.RowFilter.new(CompareFilter::CompareOp.valueOf('EQUAL'),SubstringComparator.new('2013'))} 

我没有得到这个错误。

===========解决方案如下：

第二个参数是Hash，而不是String。

import org.apache.hadoop.hbase.filter.CompareFilter 
import org.apache.hadoop.hbase.filter.SubstringComparator 
a = ARGV[0] 
scan 'dcqa_event_agg', {FILTER => org.apache.hadoop.hbase.filter.RowFilter.new(CompareFilter::CompareOp.valueOf('EQUAL'),SubstringComparator.new('#{a}'))} 
exit