We are examining the possibility of using Lucene to provide Text Search
capabilities for a 625 million row DB2 table.
The table has 6 fields, all which must be stored in the Lucene Index.
The largest column is 229 characters, the others are 8, 12, 30, and 1....
...with an additional column that is an 8 byte integer (i.e. a 'C' long long).
We have written a test app on a development system (AIX 6.1),
and have successfully Indexed 625 million rows...
...which took about 22 hours.
When writing the "search" application... we find a simple version works,
however,
if we add a Filter or a "sort" to it... we get an "out of memory" exception.
Before continuing our research, we'd like to find a way to determine
what system resources are required to run this kind of application...???
In other words, how do we calculate the memory needs...???
Have others created a similar sized Index to run on a single "shared"
server...???
Current Environment:
Lucene Version: 3.2
Java Version: J2RE 6.0 IBM J9 2.4 AIX ppc64-64 build
jvmap6460-20090215_29883
(i.e. 64 bit Java 6)
OS: AIX 6.1
Platform: PPC (IBM P520)
cores: 2
Memory: 8 GB
jvm memory: ` -Xms4072m -Xmx4072m
Any guidance would be greatly appreciated.
-tony
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