I am having problems getting correct match's results from searching through
multiple HBASE's tables.
Is there a bug in HBASE's filter? Wondering if anyone know HBASE \ Java well
and willing to help out or for a fee.
Is this a bug with HBASE?
HBASE Release 0.98.8 - 11/18/2014
Would someone help me out with the problem or confirmation whether HBASE is the
right tool or not.
Here are the details of the problem:
First I am reading some data from one table and storing in a vector or
arrayList: Is there a better way or different approach to achieve the results
than what I am heading? I am stuck trying to get the correct results with the
following approach.
//First, I am reading some data from one table and storing in a vector or
arrayList:
for (Result r : rs) {
for (KeyValue kv : r.raw()) {
if (new String(kv.getFamily()).equals("name")) {
temp = new String(kv.getValue());
x.addElement(temp);
}
}
}
//Then, I want to search a different table based on the values of this vector.
//I used filters to do this: (I tried BinaryPrefixComparator and
BinaryComparator as well)
FilterList filterList = new FilterList(FilterList.Operator.MUST_PASS_ONE);
for (int c = 0; c < x.size(); c++) {
System.out.println(x.get(c).toString());
filterList.addFilter(new SingleColumnValueFilter(Bytes.toBytes("name"), null,
CompareOp.EQUAL, new SubstringComparator( x.get(c).toString() )));
}
//I should get 3 results back, however I only get one result back, the first
entry in the database.
What doesn't make sense is that when I hardcode the value that I am looking for
into my code, I will get all 3 results back.
I thought there might be some issue with converting the bytes to String and
then back to bytes, but that would not explain how it was able to bring back
the first result. For some reason, it is stopping at the first match and
doesn't continue to find the other 2 rows that contain matching data. If I
hardcode it i get the results:
x.addElement("abc123");
filterList.addFilter(new SingleColumnValueFilter(Bytes.toBytes("mpnum"), null,
CompareOp.EQUAL, new SubstringComparator( x.get(0).toString() )));
edit: Here is the contents of the tables:
TABLE1: ROW COLUMN+CELL
0 column=gpnum:, timestamp=1481300288449, value=def123
0 column=mpnum:, timestamp=1481300273355, value=abc123
0 column=price:, timestamp=1481300255337, value=85.0
1 column=gpnum:, timestamp=1481301599999, value=def2244
1 column=mpnum:, timestamp=1481301582336, value=011511607
1 column=price:, timestamp=1481301673886, value=0.76
TABLE2
ROW COLUMN+CELL
0 column=brand:, timestamp=1481300227283, value=x
0 column=mpnum:, timestamp=1481300212289, value=abc123
0 column=price:, timestamp=1481300110950, value=50.0
1 column=mpnum:, timestamp=1481301806687 , value=011511607
1 column=price:, timestamp=1481301777345 , value=1.81
13 column=webtype:, timestamp=1483507543878, value=US
3 column=avail:, timestamp=1481306538360, value=avail
3 column=brand:, timestamp=1481306538360, value=brand
3 column=descr:, timestamp=1481306538360, value=description
3 column=dist:, timestamp=1481306538360, value=distributor
3 column=mpnum:, timestamp=1481306538360, value=pnum
3 column=price:, timestamp=1481306538360, value=price
3 column=url:, timestamp=1481306538360, value=url
3 column=webtype:, timestamp=1481306538360, value=webtype
4 column=avail:, timestamp=1481306538374, value=4
4 column=brand:, timestamp=1481306538374, value=x
4 column=descr:, timestamp=1481306538374, value=description
4 column=dist:, timestamp=1481306538374, value=x
4 column=mpnum:, timestamp=1482117383212 , value=011511607
4 column=price:, timestamp=1481306538374 , value=34.51
4 column=url:, timestamp=1481306538374, value=x:q!
4 column=webtype:, timestamp=1481306538374, value=US
5 column=avail:, timestamp=1481306538378, value=
5 column=brand:, timestamp=1481306538378, value=name
5 column=descr:, timestamp=1481306538378, value=x
5 column=dist:, timestamp=1481306538378, value=x
5 column=mpnum:, timestamp=1482117392043 , value=011511607
5 column=price:, timestamp=1481306538378 , value=321.412
5 column=url:, timestamp=1481306538378, value=x.com
THIRD TABLE (to store result matches)
0 column=brand:, timestamp=1481301813849, value=name
0 column=cprice:, timestamp=1481301813849, value=1.81
0 column=gpnum:, timestamp=1481301813849, value=def2244
0 column=gprice:, timestamp=1481301813849, value=0.76
0 column=mpnum:, timestamp=1481301813849, value=011511607
**should be three matches those that are in bold above but only brings back one
match
Your help is much appreciated. Thank You Yoom
