Question

我正在运行以下失败的HBASE shell脚本，我无法弄清楚原因：

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

dcqa_event_agg行存在。当我运行命令时：

hbase shell filtertest.rb 2013

我收到以下错误：

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中运行脚本时，它可以正常工作。有什么想法吗？

我在shell脚本中添加了一些调试：

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'))}!

删除引号并没有解决问题。

如果我在hbase shell环境中运行命令：

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'))}

我没有收到错误。

Answer 1

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

使用ARGV失败的HBASE shell脚本

1 个答案: