Hi John,
I am running on 'FastBit ibis1.3.2.6'
Am getting a weird seg fault when I try to explicitly build the index on a
'key' type column. The index is created successfully; the segfault is
encountered only at the time the program is ending. If I skip building
index on the key column (c), the program finishes up fine. Looking at
verbose logs it seems that the problem is happening when invoking the
cleaners in filemanager class.
Pls find attached the test data file and below are the command to import it
and the c++ code to reproduce the error:
** Import File **
ardea -d /tmp/data -t ~/Desktop/test.csv -m a:i,b:t,c:k
** code to create indexes **
#include "ibis.h" // FastBit IBIS public header file
#include <set> // std::set
#include <iostream>
int main() {
using namespace std;
string dir_name = "/tmp/data";
ibis::table * table = ibis::table::create(dir_name.c_str());
string col[] = {"a", "b", "c"};
string option[] = {"<binning none/><encoding equality/>", "<binning
none/><encoding equality/>", "<binning none/><encoding equality/>"};
int count = 3;
ibis::gVerbose = 10000;
for (int i = 0; i < count; ++i) {
cout << "Building: " << col[i].c_str() << " : " << option[i].c_str() <<
endl;
table->buildIndex(col[i].c_str(), option[i].c_str());
}
cout << "done" << endl;
}
**Here is the verbose output of filemanager part**
FastBit ibis1.3.2.6
Log messages started on Wed Oct 17 11:35:00 2012
.
.
.
fileManager::clear -- starting ...
--- Wed Oct 17 11:34:14 2012
The number of memory mapped files is 0. (max = 192)
Size of all mapped files is 0
The number of files read into memory is 1
file name: /tmp/data/a
storage @ 0x109a01b70, 0x109a01bc0, 1st 32 bits = 6ea6d67e
mapped n opened at Wed Oct 17 11:34:14 2012 last used at
Wed Oct 17 11:34:14 2012
# of bytes 4 # of past acc 1 # of active acc 0
The total size of all files read into memory is 4
Size of all named storages is 4
Size of all unnamed storages is 144
The total size of all named and unnamed storages is 148
The prescribed maximum size is 4,294,967,296
Number of pages accessed (recorded so far) is 2 (page size = 8192)
util::mutexLock -- acquiring lock (0x10947be80) for fileManager::clear
fileManager invoking registered external cleaners ...
column[data.c]::softWriteLock -- pthread_rwlock_trywrlock(0x109a014a0) for
unloadIndex
Segmentation fault: 11
1856427646,4028cb073615507a013616090593000c,USA
-153717237,4028cb073615507a013616090593000c,USA
-872230558,4028cb073615507a013616090593000c,China
751357126,4028cb073615507a013616090593000c,Italy
-1443604204,4028cb073615507a013616090593000c,Italy
-1500998061,4028cb073615507a013616090593000c,Japan
205480131,4028cb073615507a013616090593000c,Spain
814262249,4028cb073615507a013616090593000c,Brazil
1287768671,4028cb073615507a013616090593000c,Israel
957066872,4028cb073615507a013616090593000c,Poland
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