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mariadb-columnstore-engine/utils/idbdatafile/tdriver.cpp
Andrew Hutchings 01446d1e22 Reformat all code to coding standard
2017-10-26 17:18:17 +01:00

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/* Copyright (C) 2014 InfiniDB, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; version 2 of
the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA. */
#include <stdio.h>
#ifndef _MSC_VER
#include <stdio_ext.h>
#endif
#include <stdlib.h>
#include <iostream>
#include <iomanip>
#include <sstream>
#include <fcntl.h>
#include <sys/time.h>
#include <sys/types.h>
#include <boost/scoped_array.hpp>
#include <boost/scoped_ptr.hpp>
#include <boost/thread.hpp>
#include <boost/filesystem/operations.hpp>
#include <boost/filesystem/path.hpp>
#include "IDBDataFile.h"
#include "IDBFileSystem.h"
#include "IDBPolicy.h"
using namespace std;
using namespace idbdatafile;
size_t BLK_SIZE = 2048;
const size_t MAX_BLK_SIZE = 1048576;
size_t MAX_BLOCK = 1024;
int timeval_subtract (struct timeval* result, struct timeval* x, struct timeval* y)
{
/* Perform the carry for the later subtraction by updating y. */
if (x->tv_usec < y->tv_usec)
{
int nsec = (y->tv_usec - x->tv_usec) / 1000000 + 1;
y->tv_usec -= 1000000 * nsec;
y->tv_sec += nsec;
}
if (x->tv_usec - y->tv_usec > 1000000)
{
int nsec = (y->tv_usec - x->tv_usec) / 1000000;
y->tv_usec += 1000000 * nsec;
y->tv_sec -= nsec;
}
/* Compute the time remaining to wait.
tv_usec is certainly positive. */
result->tv_sec = x->tv_sec - y->tv_sec;
result->tv_usec = x->tv_usec - y->tv_usec;
/* Return 1 if result is negative. */
return x->tv_sec < y->tv_sec;
}
void usage()
{
cerr << "usage: fophdfs [adpsrh:b:t:cvuen:l:m:] <fname>" << endl;
cerr << " -d use O_DIRECT" << endl;
cerr << " -p flush before read" << endl;
cerr << " -s sync on write" << endl;
cerr << " -r reopen file for read" << endl;
cerr << " -b <BLK_SIZE> block size in bytes" << endl;
cerr << " -d <milliseconds> delay before read" << endl;
cerr << " -c close file after each write" << endl;
cerr << " -v use setvbuf to disable buffering" << endl;
cerr << " -n <num blocks> number of blocks to write/read" << endl;
cerr << " -t <num threads> number of concurrent test threads" << endl;
cerr << " -l <filename> do an HDFS large read-write file test" << endl;
cerr << " -h <plugin-file> load an HDFS plugin (and run HDFS tests)" << endl;
cerr << " -m set max size for HDFS mem buffer, default is unlimited" << endl;
}
struct foptest_opts
{
bool usedirect;
bool preflush;
bool synconwrite;
bool reopen;
bool closeonwrite;
bool usevbuf;
int numthreads;
int numblocks;
IDBDataFile::Types filetype;
string largeFile;
string pluginFile;
bool useHdfs;
unsigned hdfsMaxMem;
foptest_opts() :
usedirect(false),
preflush(false),
synconwrite(false),
reopen(false),
closeonwrite(false),
usevbuf(false),
numthreads(1),
numblocks(64),
filetype(IDBDataFile::UNBUFFERED),
largeFile(""),
pluginFile(""),
useHdfs(false),
hdfsMaxMem(0)
{;}
};
class TestRunner
{
public:
TestRunner(int id, const foptest_opts& opts);
~TestRunner();
bool runTest( IDBDataFile::Types filetype, unsigned open_opts );
bool fillDefault();
bool doBlock(unsigned int blocknum, unsigned char tag, unsigned int count);
bool writeBlock(unsigned int blocknum, unsigned char* buf, unsigned char tag);
bool writeBlocks(unsigned int blocknum, unsigned char* buf, unsigned char tag, unsigned int count);
bool readBlock(unsigned int blocknum, unsigned char* buf, unsigned char tag);
bool readBlocks(unsigned int blocknum, unsigned char* buf, unsigned char tag, unsigned int count);
const foptest_opts& runOpts() const
{
return m_opts;
}
enum LogLevel
{
INFO,
ERROR
};
void logMsg( LogLevel level, const string& msg, bool bold = false );
private:
bool readTest( IDBDataFile::Types filetype );
friend void thread_func2( TestRunner& trun );
bool randomReadTest();
bool openByModeStrTest();
bool writeTest( IDBDataFile::Types filetype );
bool truncateTest( IDBDataFile::Types filetype );
bool renameTest( IDBDataFile::Types filetype );
bool copyTest( IDBDataFile::Types filetype );
bool rdwrTest( IDBDataFile::Types filetype );
bool hdfsRdwrExhaustTest();
bool concurrencyTest( IDBDataFile::Types filetype );
bool tellTest( IDBDataFile::Types filetype );
bool openWF( bool reopen = false );
bool openRF();
bool flushTest(IDBDataFile::Types);
bool seekTest(IDBDataFile::Types);
bool listDirTest(IDBDataFile::Types, const string&);
void reset();
string m_fname;
foptest_opts m_opts;
unsigned char m_defbuf[MAX_BLK_SIZE];
IDBDataFile* m_file;
unsigned m_open_opts;
int m_id;
static boost::mutex m_guard;
};
boost::mutex TestRunner::m_guard;
void thread_func2( TestRunner& trun )
{
trun.randomReadTest();
}
TestRunner::TestRunner(int id, const foptest_opts& opts) :
m_opts(opts),
m_file(NULL),
m_open_opts(0),
m_id(id)
{
for ( unsigned i = 0; i < BLK_SIZE; i++ )
{
m_defbuf[i] = 0xfe;
}
}
void TestRunner::reset()
{
delete m_file;
m_file = 0;
}
struct TestCleanup
{
TestCleanup( IDBDataFile::Types type, const string& dir, const string& file ) :
m_fs( IDBFileSystem::getFs( type ) ),
m_dir(dir),
mm_file(file) {}
~TestCleanup()
{
assert( m_fs.exists( mm_file.c_str() ) );
m_fs.remove(mm_file.c_str());
assert( !m_fs.exists( mm_file.c_str() ) );
assert( m_fs.exists( m_dir.c_str() ) );
assert( m_fs.isDir( m_dir.c_str() ));
m_fs.remove(m_dir.c_str());
assert( !m_fs.exists( m_dir.c_str() ) );
}
IDBFileSystem& m_fs;
string m_dir;
string mm_file;
};
bool TestRunner::runTest( IDBDataFile::Types filetype, unsigned open_opts )
{
m_open_opts = open_opts;
ostringstream infostr;
string typeString = ( filetype == IDBDataFile::UNBUFFERED ? "Unbuffered" :
( filetype == IDBDataFile::BUFFERED ? "Buffered" : "HDFS" ) );
infostr << "Running test for file type " << typeString;
logMsg( INFO, infostr.str() );
if (filetype != IDBDataFile::UNBUFFERED && filetype != IDBDataFile::BUFFERED)
{
if ( !IDBPolicy::installPlugin(m_opts.pluginFile) )
{
cout << "ERROR: unable to install HDFS plugin!" << endl;
return -1;
}
}
IDBFileSystem& fs = IDBFileSystem::getFs( filetype );
// build the file name we are going to use
ostringstream oss;
// embed pid so that this is a new directory path
oss << "/tmp/idbdf-dir-" << getpid() << "-" << m_id << "/Calpont/data";
// we need to make sure this directory doesn't already exist
// todo-this only works non-HDFS
string cmd = "rm -rf " + oss.str();
system(cmd.c_str());
string dir = oss.str();
m_fname = dir + "/foobar";
// instantiate this here so that we always clean up files we created no matter
// where we exit the function from
boost::scoped_ptr<TestCleanup> cleanup( new TestCleanup( filetype, dir, m_fname ) );
// HDFS will automatically create parent directories when opening a file so these
// tests around mkdir are irrelevant.
if ( filetype != IDBDataFile::HDFS )
{
// we expect this to fail because the parent directory should not exist
reset();
m_file = IDBDataFile::open(filetype, m_fname.c_str(), "w", m_open_opts);
if ( m_file )
{
ostringstream errstr;
errstr << "open for writing of path " << m_fname << " should not succeed!";
logMsg( ERROR, errstr.str() );
return false;
}
// now create the path
if (fs.mkdir(dir.c_str()))
{
ostringstream errstr;
errstr << "open mkdir of " << dir << " failed!";
logMsg( ERROR, errstr.str() );
return false;
}
}
bool returnval = true;
if ( returnval )
{
returnval = writeTest( filetype );
}
// going to check the size two different ways - once through the file and
// once through the file system.
unsigned fsize = m_file->size();
if ( fsize != m_opts.numblocks * BLK_SIZE )
{
ostringstream errstr;
errstr << "bad file size from file " << fsize << " != " << m_opts.numblocks* BLK_SIZE << "!";
logMsg( ERROR, errstr.str() );
return false;
}
// this deletes and closes the file - required to get accurate file size with
// buffered IO and in HDFS from the file system
reset();
fsize = fs.size(m_fname.c_str());
if ( fsize != m_opts.numblocks * BLK_SIZE )
{
ostringstream errstr;
errstr << "bad file size from fs " << fsize << " != " << m_opts.numblocks* BLK_SIZE << "!";
logMsg( ERROR, errstr.str() );
return false;
}
if ( returnval )
{
returnval = tellTest( filetype );
}
if ( returnval )
{
returnval = readTest( filetype );
}
if ( returnval && (filetype == IDBDataFile::UNBUFFERED || filetype == IDBDataFile::HDFS ))
{
returnval = concurrencyTest( filetype );
}
if ( returnval )
{
reset();
m_file = IDBDataFile::open(filetype, m_fname.c_str(), "r", m_open_opts);
if ( !m_file )
{
ostringstream errstr;
errstr << "Unable to open " << m_fname << " for reading";
logMsg( ERROR, errstr.str() );
return false;
}
if ( m_opts.numthreads > 1)
{
boost::thread_group thread_group;
for ( int i = 0; i < m_opts.numthreads; ++i )
{
thread_group.create_thread(boost::bind(thread_func2, boost::ref(*this)));
}
thread_group.join_all();
}
returnval = randomReadTest();
}
if ( returnval )
{
returnval = rdwrTest( filetype );
}
if ( returnval && filetype == IDBDataFile::BUFFERED )
{
returnval = openByModeStrTest();
}
if ( returnval )
{
returnval = truncateTest( filetype );
}
if ( returnval )
{
returnval = renameTest( filetype );
}
if ( returnval )
{
returnval = copyTest( filetype );
}
if ( returnval && filetype == IDBDataFile::HDFS )
{
returnval = hdfsRdwrExhaustTest();
}
if ( returnval )
{
returnval = flushTest( filetype );
}
if ( returnval )
{
returnval = seekTest( filetype );
}
if ( returnval )
{
returnval = listDirTest( filetype, dir );
}
if ( returnval )
logMsg( INFO, typeString + " tests passed!", true );
reset();
return returnval;
}
bool TestRunner::readTest( IDBDataFile::Types filetype )
{
logMsg( INFO, "readTest" );
reset();
m_file = IDBDataFile::open(filetype, m_fname.c_str(), "r", m_open_opts);
if ( !m_file )
{
ostringstream errstr;
errstr << "Unable to open " << m_fname << " for reading";
logMsg( ERROR, errstr.str() );
return false;
}
// check the mtime method.
time_t now = time(0);
time_t mtime = m_file->mtime();
assert( (now - mtime) <= 3 );
struct timeval starttime, endtime, timediff;
gettimeofday(&starttime, 0x0);
for ( int i = 0; i < m_opts.numblocks; ++i)
{
if ( !readBlock(i, m_defbuf, i) )
return false;
}
gettimeofday(&endtime, 0x0);
timeval_subtract(&timediff, &endtime, &starttime);
float secs = timediff.tv_sec + (timediff.tv_usec * 0.000001);
ostringstream infostr;
infostr << "Read " << m_opts.numblocks* BLK_SIZE << " bytes in " << secs << " secs, ";
infostr << "Throughput = " << setprecision(3) << ((m_opts.numblocks * BLK_SIZE) / 1000000.0) / secs << "MB/sec";
logMsg( INFO, infostr.str() );
return true;
}
bool TestRunner::randomReadTest()
{
logMsg( INFO, "randomReadTest" );
struct drand48_data d48data;
srand48_r(pthread_self(), &d48data);
for ( int i = 0; i < 10; ++i )
{
long int blk_num;
lrand48_r( &d48data, &blk_num);
blk_num = blk_num % m_opts.numblocks;
unsigned char readbuf[4];
assert( m_file->pread( readbuf, blk_num * BLK_SIZE, 4 ) == 4 );
assert( readbuf[0] == (unsigned char) blk_num );
}
return true;
}
bool TestRunner::openByModeStrTest()
{
logMsg( INFO, "openByModeStrTest" );
// in this test we want to check the alternate open modes available for buffered i/o
// this test is only run if we are doing buffered I/O and expects it is run after the
// write test to guarantee the file is there
reset();
m_file = IDBDataFile::open(IDBDataFile::BUFFERED, m_fname.c_str(), "r+b", m_open_opts);
if ( !m_file )
{
ostringstream errstr;
errstr << "Unable to open " << m_fname << " for read/write";
logMsg( ERROR, errstr.str() );
return false;
}
// keep this fairly simple - read a block then write a block
ssize_t readct = m_file->read(m_defbuf, BLK_SIZE);
if ( (size_t) readct != BLK_SIZE )
{
ostringstream errstr;
errstr << "Only read " << readct << " bytes, expected 4";
logMsg( ERROR, errstr.str() );
return false;
}
if ( m_defbuf[0] != (unsigned char) 0 )
{
ostringstream errstr;
errstr << "Data error - expected " << 0 << ", read " << (int) m_defbuf[0];
logMsg( ERROR, errstr.str() );
return false;
}
// we should be at block 1
long filepos = m_file->tell();
if ( filepos != long(BLK_SIZE) )
{
ostringstream errstr;
errstr << "File position not at correct block, " << filepos << " != " << BLK_SIZE;
logMsg( ERROR, errstr.str() );
return false;
}
m_defbuf[0] = 1;
ssize_t bytes_written = m_file->write(m_defbuf, BLK_SIZE);
if ( (size_t) bytes_written != BLK_SIZE )
{
ostringstream errstr;
errstr << "Only wrote " << bytes_written << " bytes, expected 4";
logMsg( ERROR, errstr.str() );
return false;
}
return true;
}
bool TestRunner::writeTest( IDBDataFile::Types filetype )
{
logMsg( INFO, "writeTest" );
reset();
m_file = IDBDataFile::open(filetype, m_fname.c_str(), "w", m_open_opts);
if ( !m_file )
{
ostringstream errstr;
errstr << "Unable to open " << m_fname << " for writing";
logMsg( ERROR, errstr.str() );
return false;
}
struct timeval starttime, endtime, timediff;
gettimeofday(&starttime, 0x0);
for ( int i = 0; i < m_opts.numblocks; ++i)
{
if ( !writeBlock(i, m_defbuf, i) )
return false;
}
gettimeofday(&endtime, 0x0);
timeval_subtract(&timediff, &endtime, &starttime);
float secs = timediff.tv_sec + (timediff.tv_usec * 0.000001);
ostringstream infostr;
infostr << "Wrote " << m_opts.numblocks* BLK_SIZE << " bytes in " << secs << " secs, ";
infostr << "Throughput = " << setprecision(3) << ((m_opts.numblocks * BLK_SIZE) / 1000000.0) / secs << "MB/sec";
logMsg( INFO, infostr.str() );
return true;
}
bool TestRunner::truncateTest( IDBDataFile::Types filetype )
{
logMsg( INFO, "truncateTest" );
reset();
m_file = IDBDataFile::open(filetype, m_fname.c_str(), "a", m_open_opts);
if ( !m_file )
{
ostringstream errstr;
errstr << "Unable to open " << m_fname << " for writing";
logMsg( ERROR, errstr.str() );
return false;
}
// choose a random block to truncate at
struct drand48_data d48data;
srand48_r(0xdeadbeef, &d48data);
long int blk_num;
lrand48_r( &d48data, &blk_num);
blk_num = blk_num % m_opts.numblocks;
// always leave at least one block
if ( blk_num == 0 )
blk_num = 1;
int rc = m_file->truncate(blk_num * BLK_SIZE);
if ( (filetype != IDBDataFile::HDFS) && rc)
{
logMsg( ERROR, "truncate failed!" );
return false;
}
else if ( (filetype == IDBDataFile::HDFS) && !rc )
{
logMsg( ERROR, "truncate is supposed to fail for HDFS files!" );
return false;
}
else if ( (filetype == IDBDataFile::HDFS) )
{
// this is the "success" case for HDFS we didn't expect to truncate so reset blk_num
blk_num = m_opts.numblocks;
}
off64_t fsize = m_file->size();
if ( fsize != (off64_t) (blk_num * BLK_SIZE))
{
ostringstream errstr;
errstr << "wrong file size after truncate, " << fsize << " != " << blk_num* BLK_SIZE;
logMsg( ERROR, errstr.str() );
return false;
}
return true;
}
bool TestRunner::renameTest( IDBDataFile::Types type )
{
logMsg( INFO, "renameTest" );
// assume this test is run after the write test so that the file m_fname exists
reset();
IDBFileSystem& fs = IDBFileSystem::getFs( type );
// get the size before we move for compare purposes.
off64_t fsize_orig = fs.size( m_fname.c_str() );
// choose a path in a different directory that we know already exists
// and make it specific to our thread...
ostringstream oss;
// embed pid so that this is a new directory path
oss << "/tmp/renametest-" << getpid() << "-" << m_id;
string newpath = oss.str();
// rename it
int rc = fs.rename( m_fname.c_str(), newpath.c_str() );
if ( rc != 0 )
{
ostringstream errstr;
errstr << "rename failed, " << strerror( errno );
logMsg( ERROR, errstr.str() );
return false;
}
// now check if oldpath exists using size method
off64_t fsize = fs.size( m_fname.c_str() );
if ( fsize != -1 )
{
ostringstream errstr;
errstr << "old file still exists, size = " << fsize;
logMsg( ERROR, errstr.str() );
return false;
}
// now check if newpath exists using size method
fsize = fs.size( newpath.c_str() );
if ( fsize != fsize_orig )
{
ostringstream errstr;
errstr << "new file and old file sizes differ, " << fsize << "!=" << fsize_orig;
logMsg( ERROR, errstr.str() );
return false;
}
// everything looks good - put it back
// rename it
rc = fs.rename( newpath.c_str(), m_fname.c_str() );
if ( rc != 0 )
{
ostringstream errstr;
errstr << "final rename failed, " << strerror( errno );
logMsg( ERROR, errstr.str() );
return false;
}
// now a negative test case. Try to rename a file that does not exist
assert( fs.rename( "a-bogus-file-name", newpath.c_str() ) == -1 );
return true;
}
bool TestRunner::copyTest( IDBDataFile::Types type )
{
// assume this test is run after the write test so that the file m_fname exists
reset();
IDBFileSystem& fs = IDBFileSystem::getFs( type );
// get the size before we copy for compare purposes.
off64_t fsize_orig = fs.size( m_fname.c_str() );
// choose a path in a different directory that we know already exists
// and make it specific to our thread...
ostringstream oss;
// embed pid so that this is a new directory path
oss << "/tmp/copytest-" << getpid() << "-" << m_id;
string newpath = oss.str();
// copy it
int rc = fs.copyFile( m_fname.c_str(), newpath.c_str() );
if ( rc != 0 )
{
ostringstream errstr;
errstr << "copy failed, " << strerror( errno );
logMsg( ERROR, errstr.str() );
return false;
}
// now check if newpath exists using size method
off64_t fsize = fs.size( newpath.c_str() );
if ( fsize != fsize_orig )
{
ostringstream errstr;
errstr << "new file and old file sizes differ, " << fsize << "!=" << fsize_orig;
logMsg( ERROR, errstr.str() );
return false;
}
// everything looks good - delete the copy
rc = fs.remove( newpath.c_str() );
if ( rc != 0 )
{
ostringstream errstr;
errstr << "file delete failed (after copy), " << strerror( errno );
logMsg( ERROR, errstr.str() );
return false;
}
// now a negative test case. Try to copy a file that does not exist
assert( fs.copyFile( "a-bogus-file-name", newpath.c_str() ) == -1 );
return true;
}
bool TestRunner::rdwrTest( IDBDataFile::Types filetype )
{
logMsg( INFO, "rdwrTest" );
reset();
m_file = IDBDataFile::open(filetype, m_fname.c_str(), "r+", m_open_opts);
if ( !m_file )
{
ostringstream errstr;
errstr << "Unable to open " << m_fname << " for reading";
logMsg( ERROR, errstr.str() );
return false;
}
struct drand48_data d48data;
srand48_r(0xdeadbeef, &d48data);
// we will write to 5 random blocks and then come back and
// verify the contents and undo them
int blocks_to_touch = min( 5, m_opts.numblocks);
vector<int> touched;
for ( int i = 0; i < blocks_to_touch; ++i )
{
long int blk_num;
// we need to make sure all the blocks we touch are unique or
// the pattern used by this test won't work
bool found = false;
while (!found)
{
lrand48_r( &d48data, &blk_num);
blk_num = blk_num % m_opts.numblocks;
vector<int>::iterator pos = find( touched.begin(), touched.end(), blk_num );
if ( pos == touched.end())
found = true;
}
if ( m_file->seek(blk_num * BLK_SIZE, SEEK_SET) )
{
ostringstream errstr;
errstr << "failed to seek block " << blk_num;
logMsg( ERROR, errstr.str() );
return false;
}
unsigned char writeval = 0xb0;
ssize_t writect = m_file->write(&writeval, 1);
if ( writect != 1 )
{
ostringstream errstr;
errstr << "Only wrote " << writect << " bytes, expected 1";
logMsg( ERROR, errstr.str() );
return false;
}
touched.push_back(blk_num);
}
m_file->flush();
for ( int i = 0; i < (int) touched.size(); ++i )
{
unsigned char readbuf;
ssize_t readct = m_file->pread(&readbuf, touched[i] * BLK_SIZE, 1);
if ( readct != 1 || readbuf != (unsigned char) 0xb0 )
{
ostringstream errstr;
errstr << "Error reading expected value, readct=" << readct << " bytes, value" << (int) readbuf;
logMsg( ERROR, errstr.str() );
return false;
}
readbuf = touched[i];
if ( m_file->seek(-1, SEEK_CUR) )
{
ostringstream errstr;
errstr << "failed to seek -1";
logMsg( ERROR, errstr.str() );
return false;
}
ssize_t writect = m_file->write(&readbuf, 1);
if ( writect != 1 )
{
ostringstream errstr;
errstr << "Only wrote " << writect << " bytes, expected 1";
logMsg( ERROR, errstr.str() );
return false;
}
}
return true;
}
bool TestRunner::hdfsRdwrExhaustTest()
{
logMsg( INFO, "hdfsRdwrExhaustTest" );
// this is going to be a self-contained test that attempts to test
// all logic inherent in HdfsRdwr
// choose a new filename that is specific to our thread
ostringstream oss;
// embed pid so that this is a new directory path
oss << "/tmp/hdfsrdwr-" << getpid() << "-" << m_id;
string newpath = oss.str();
// open a file with arbitrarily small buffer
IDBDataFile* file = IDBDataFile::open(IDBDataFile::HDFS, newpath.c_str(), "r+", 0, 8);
assert( file );
// check various empty file conditions
assert( file->size() == 0 );
assert( file->tell() == 0 );
assert( file->seek(-1, SEEK_CUR) == -1);
assert( file->seek(0, SEEK_SET) == 0);
unsigned char buf[4];
assert( file->read(buf, 4) == 0);
// write some data
buf[0] = 0xde;
buf[1] = 0xad;
buf[2] = 0xbe;
buf[3] = 0xef;
assert( file->write(buf, 4) == 4);
assert( file->size() == 4 );
assert( file->tell() == 4 );
assert( file->truncate(-1) == -1 );
// now make file empty again
assert( file->truncate(0) == 0 );
assert( file->size() == 0 );
assert( file->seek(0, SEEK_SET) == 0);
assert( file->tell() == 0 );
assert( file->read(buf, 4) == 0);
// write data again, this time exactly up to allocated size
assert( file->write(buf, 4) == 4);
assert( file->write(buf, 4) == 4);
assert( file->size() == 8 );
assert( file->tell() == 8 );
// truncate back to 4
assert( file->truncate(4) == 0 );
assert( file->size() == 4 );
assert( file->seek(4, SEEK_SET) == 0);
assert( file->tell() == 4 );
// now trigger a buffer reallocation
assert( file->write(buf, 4) == 4);
assert( file->write(buf, 4) == 4);
assert( file->size() == 12 );
// now delete and close.
delete file;
// check the file size through the file system
IDBFileSystem& fs = IDBFileSystem::getFs( IDBDataFile::HDFS );
assert( fs.size( newpath.c_str() ) == 12);
// open again - the file is bigger than the default buffer so it triggers alternate
// logic in the constructor
file = IDBDataFile::open(IDBDataFile::HDFS, newpath.c_str(), "r+", 0, 8);
assert( file );
assert( file->size() == 12);
unsigned char newbuf[4];
assert( file->pread(newbuf, 4, 4) == 4);
assert( newbuf[0] == 0xde && newbuf[1] == 0xad && newbuf[2] == 0xbe && newbuf[3] == 0xef);
delete file;
fs.remove(newpath.c_str());
if ( m_opts.largeFile.length() )
{
file = IDBDataFile::open(IDBDataFile::HDFS, m_opts.largeFile.c_str(), "r+", 0);
assert( file );
}
return true;
}
bool TestRunner::concurrencyTest( IDBDataFile::Types filetype )
{
logMsg( INFO, "concurrencyTest" );
reset();
// ok - scenario is a reader opens the file then a reader/writer opens
// the same file and updates something, then the reader tries to read
// again.
m_file = IDBDataFile::open(filetype, m_fname.c_str(), "r", m_open_opts);
assert(m_file);
// read a few blocks
assert( readBlock(0, m_defbuf, 0) );
assert( readBlock(1, m_defbuf, 1) );
// open the same file for read/write
IDBDataFile* rdwrFile = IDBDataFile::open(filetype, m_fname.c_str(), "r+", m_open_opts);
assert(rdwrFile);
// read a block, write a block
assert( rdwrFile->pread(m_defbuf, 0, BLK_SIZE) == (ssize_t) BLK_SIZE );
assert( m_defbuf[0] == 0 );
m_defbuf[0] = 95;
assert( rdwrFile->seek(0, 0) == 0 );
assert( rdwrFile->write(m_defbuf, BLK_SIZE) );
// close file
delete rdwrFile;
// this 5 seconds is important in the HDFS case because it gives HDFS
// time to age off (or whatever) the blocks for the original file that
// have now been rewritten. The value was determined experimentally -
// 3 secs works fine most times but not all. If HDFS hasn't aged out
// the blocks then the read will return the old data
if ( filetype == IDBDataFile::HDFS )
sleep(10);
// go back to the reader and make sure he got the new value, then close
assert( readBlock(0, m_defbuf, 95) );
delete m_file;
// now put block 0 back the way it was
m_file = IDBDataFile::open(filetype, m_fname.c_str(), "r+", m_open_opts);
assert(m_file);
assert( writeBlock(0, m_defbuf, 0) );
return true;
}
bool TestRunner::tellTest( IDBDataFile::Types filetype )
{
logMsg( INFO, "tellTest" );
reset();
// scenario: reader opens file, seeks somewhere and tells where it is.
m_file = IDBDataFile::open(filetype, m_fname.c_str(), "r", m_open_opts);
assert(m_file);
// read a few blocks
assert( readBlock(0, m_defbuf, 0) );
assert( readBlock(1, m_defbuf, 1) );
if ( m_file->seek(BLK_SIZE, SEEK_SET) )
{
ostringstream errstr;
errstr << "tellTest: failed to seek block";
logMsg( ERROR, errstr.str() );
return false;
}
off64_t filepos = m_file->tell();
if ( filepos != off64_t(BLK_SIZE) )
{
ostringstream errstr;
errstr << "tellTest: File position not at correct block, " << filepos << " != " << BLK_SIZE;
logMsg( ERROR, errstr.str() );
return false;
}
return true;
}
bool TestRunner::flushTest( IDBDataFile::Types filetype )
{
logMsg( INFO, "flushTest" );
reset();
string scratch = "/tmp/rdwr_scratch" + m_fname; // scratch file name if exists
boost::filesystem::remove(scratch);
IDBPolicy::remove(m_fname.c_str());
// scenario: writer opens the file, writes 8 bytes, flush;
// reader opens the file, reads 8 bytes, verifys the data, then closes file;
// writer writes 8M bytes (force to buffered file) if -m option used correctly;
// reader opens the file, verifys the file size and content, then closes the file;
// writer closes the file.
ostringstream errstr;
m_file = IDBDataFile::open(filetype, m_fname.c_str(), "w+", m_open_opts, /*default:4*/ 1);
if (!m_file)
{
errstr << "flushTest: open " << m_fname.c_str() << " for write failed";
logMsg( ERROR, errstr.str() );
return false;
}
// write 8 "1" through mem buff
const char w1[] = "11111111";
ssize_t bytes = 0;
if ((bytes = m_file->write(w1, 8)) != 8)
{
errstr << "flushTest: write count = 8, return = " << bytes;
logMsg( ERROR, errstr.str() );
return false;
}
// for HDFS, force writing out to disk.
m_file->flush();
if (!IDBPolicy::exists(m_fname.c_str()))
{
errstr << "flushTest: " << m_fname.c_str() << " does not exist";
logMsg( ERROR, errstr.str() );
return false;
}
if (filetype == IDBDataFile::HDFS && boost::filesystem::exists(scratch))
{
errstr << "flushTest: " << scratch << " exists after 1st write";
logMsg( ERROR, errstr.str() );
return false;
}
// read from file in "r" mode
IDBDataFile* file = IDBDataFile::open(filetype, m_fname.c_str(), "r", m_open_opts, 1);
if (!file)
{
errstr << "flushTest: 1st open " << m_fname.c_str() << " to read failed";
logMsg( ERROR, errstr.str() );
return false;
}
char r1[9] = {0};
ssize_t n1 = file->pread(r1, 0, 8);
if (n1 != 8 || strncmp(r1, w1, 8) != 0)
{
errstr << "flushTest: read " << n1 << " != 8 OR " << r1 << "!= 11111111";
logMsg( ERROR, errstr.str() );
return false;
}
delete file;
file = NULL;
// write 8M "2", switched to file buffer if max size for mem buffer is small.
//char w2[] = {[0 ... 8*1024*1024] = '2'};
ssize_t m9 = 9 * 1024 * 1024; // must be large than EXTENTSIZE = 8390656 to swith to file buffer
boost::scoped_array<char> w2(new char[m9]);
memset(w2.get(), '2', m9);
m_file->write(w2.get(), m9);
m_file->flush();
// check file size
if (IDBPolicy::size(m_fname.c_str()) != 8 + m9)
{
errstr << "flushTest: size of " << m_fname.c_str() << " is "
<< IDBPolicy::size(m_fname.c_str()) << ", expecting " << (8 + m9);
logMsg( ERROR, errstr.str() );
return false;
}
if (filetype == IDBDataFile::HDFS &&
!boost::filesystem::exists(scratch) &&
m_opts.hdfsMaxMem < m9)
{
errstr << "flushTest: " << scratch << " does not exist after 2nd write";
logMsg( ERROR, errstr.str() );
return false;
}
// 2nd read
file = IDBDataFile::open(filetype, m_fname.c_str(), "r", m_open_opts, 1);
if (!file)
{
errstr << "flushTest: 2nd open " << m_fname.c_str() << " to read failed";
logMsg( ERROR, errstr.str() );
return false;
}
//char r2[9*1024*1024 + 8 + 1] = {0};
boost::scoped_array<char> r2(new char[9 * 1024 * 1024 + 8 + 1]);
memset(r2.get(), 0, m9 + 9);
ssize_t n2 = file->pread(r2.get(), 0, m9 + 8);
if (n2 != (m9 + 8) || strncmp(r2.get(), w1, 8) != 0 || memcmp(r2.get() + 8, w2.get(), m9) != 0)
{
errstr << "flushTest: 2nd read " << m_fname.c_str() << " failed" << endl
<< " return value: " << n2 << " bytes -- " << r2; // need hex dump?
logMsg( ERROR, errstr.str() );
return false;
}
delete file;
file = NULL;
delete m_file;
m_file = NULL;
return true;
}
bool TestRunner::seekTest( IDBDataFile::Types filetype )
{
logMsg( INFO, "seekTest" );
reset();
// scenario: writer opens the file with w+, writes 8 bytes, seek to 4 from 0, write 4 bytes
// reader opens the file with r, verify size and contents,
// writer seeks 4 bytes beyond EOF, write 4 bytes, and close the file,
// reader rewinds, verify size and contents, and close the file.
ostringstream errstr;
m_file = IDBDataFile::open(filetype, m_fname.c_str(), "w+", m_open_opts);
if (!m_file)
{
errstr << "seekTest: open " << m_fname.c_str() << " for write failed";
logMsg( ERROR, errstr.str() );
return false;
}
// write 8 "1" through mem buff
const char w1[] = "11111111";
ssize_t bytes = 0;
if ((bytes = m_file->write(w1, 8)) != 8)
{
errstr << "seekTest: write1 count = 8, return = " << bytes;
logMsg( ERROR, errstr.str() );
return false;
}
if (m_file->seek(4, SEEK_SET) != 0)
{
errstr << "seekTest: seek(4, SEEK_SET) failed";
logMsg( ERROR, errstr.str() );
return false;
}
const char w2[] = "2222";
if ((bytes = m_file->write(w2, 4)) != 4)
{
errstr << "seekTest: write2 count = 4, return = " << bytes;
logMsg( ERROR, errstr.str() );
return false;
}
// for HDFS, force writing out to disk.
m_file->flush();
// read from file in "r" mode
IDBDataFile* file = IDBDataFile::open(filetype, m_fname.c_str(), "r", m_open_opts);
if (!file)
{
errstr << "seekTest: 1st open " << m_fname.c_str() << " to read failed";
logMsg( ERROR, errstr.str() );
return false;
}
char r1[9] = {0};
ssize_t n1 = file->pread(r1, 0, 8);
if (IDBPolicy::size(m_fname.c_str()) != 8)
{
errstr << "seekTest: size of " << m_fname.c_str() << " is "
<< IDBPolicy::size(m_fname.c_str()) << ", expecting 8";
logMsg( ERROR, errstr.str() );
return false;
}
if (n1 != 8 || strncmp(r1, w1, 4) != 0 || strncmp(r1 + 4, w2, 4) != 0)
{
errstr << "seekTest: read " << n1 << " != 8 OR " << r1 << "!= 11112222";
logMsg( ERROR, errstr.str() );
return false;
}
// now seek beyond the eof, and write 4 bytes.
const char w3[] = "3333";
if (m_file->seek(4, SEEK_END) != 0)
{
errstr << "seekTest: seek(4, SEEK_END) failed";
logMsg( ERROR, errstr.str() );
return false;
}
if ((bytes = m_file->write(w3, 4)) != 4)
{
errstr << "seekTest: write3 count = 4, return = " << bytes;
logMsg( ERROR, errstr.str() );
return false;
}
m_file->flush();
delete m_file;
m_file = NULL;
// check file size
if (IDBPolicy::size(m_fname.c_str()) != 16)
{
errstr << "seekTest: size of " << m_fname.c_str() << " is "
<< IDBPolicy::size(m_fname.c_str()) << ", expecting 16";
logMsg( ERROR, errstr.str() );
return false;
}
// 2nd read
file = IDBDataFile::open(filetype, m_fname.c_str(), "r", m_open_opts);
if (!file)
{
errstr << "seekTest: 2nd open " << m_fname.c_str() << " to read failed";
logMsg( ERROR, errstr.str() );
return false;
}
char r2[17] = {0};
const char pd[4] = {0}; // padding
ssize_t n2 = file->pread(r2, 0, 16);
if (n2 != 16 ||
strncmp(r2, w1, 4) != 0 || memcmp(r2 + 4, w2, 4) != 0 ||
strncmp(r2 + 8, pd, 4) != 0 || memcmp(r2 + 12, w3, 4) != 0)
{
errstr << "seekTest: 2nd read " << m_fname.c_str() << " failed" << endl
<< " return value: " << n2 << " bytes -- " << r2; // need hex dump?
logMsg( ERROR, errstr.str() );
return false;
}
delete file;
file = NULL;
return true;
}
bool TestRunner::listDirTest( IDBDataFile::Types filetype, const string& dir )
{
logMsg( INFO, "listDirTest" );
IDBFileSystem& fs = IDBFileSystem::getFs( filetype );
ostringstream errstr;
string fname2 = m_fname + "2";
string fname3 = m_fname + "3";
IDBDataFile* file2 = IDBDataFile::open(filetype, fname2.c_str(), "w", m_open_opts);
if (file2)
delete file2;
IDBDataFile* file3 = IDBDataFile::open(filetype, fname3.c_str(), "w", m_open_opts);
if (file3)
delete file3;
list<string> dircontents;
if (fs.listDirectory( dir.c_str(), dircontents ) != 0)
{
errstr << "Error calling listDirectory";
logMsg( ERROR, errstr.str() );
return false;
}
ostringstream ldstr;
ldstr << "Listed directory " << dir << ":";
list<string>::iterator iend = dircontents.end();
bool foobarFound = false;
bool foobar2Found = false;
bool foobar3Found = false;
for ( list<string>::iterator i = dircontents.begin(); i != iend; ++i )
{
ldstr << (*i) << ",";
if ((*i) == "foobar")
foobarFound = true;
else if ((*i) == "foobar2")
foobar2Found = true;
else if ((*i) == "foobar3")
foobar3Found = true;
}
logMsg( INFO, ldstr.str() );
if (dircontents.size() != 3)
{
errstr << "listDirectory not returning 3 file names";
logMsg( ERROR, errstr.str() );
return false;
}
if ((!foobarFound || !foobar2Found || !foobar3Found))
{
errstr << "listDirectory returning incorrect file names";
logMsg( ERROR, errstr.str() );
return false;
}
// now check a bogus path and make sure it returns -1
if (fs.listDirectory( "/this-is-a-bogus-directory", dircontents ) != -1)
{
errstr << "listDirectory not failing a call for a bogus directory";
logMsg( ERROR, errstr.str() );
return false;
}
assert( fs.remove( "/this-is-a-bogus-directory" ) == 0 );
assert( !fs.isDir( "/this-is-a-bogus-directory" ));
assert( !fs.isDir( m_fname.c_str() ));
return true;
}
TestRunner::~TestRunner()
{
}
bool TestRunner::fillDefault()
{
return true;
}
bool TestRunner::writeBlock(unsigned int blocknum, unsigned char* buf, unsigned char tag)
{
buf[0] = tag;
ssize_t rc = m_file->write(buf, BLK_SIZE);
if ((size_t) rc != BLK_SIZE)
{
ostringstream errstr;
errstr << "writeBlock failed for block " << blocknum << ", wrote " << rc << " bytes, expecting " << BLK_SIZE;
logMsg( ERROR, errstr.str() );
return false;
}
return true;
}
bool TestRunner::writeBlocks(unsigned int blocknum, unsigned char* buf, unsigned char tag, unsigned int count)
{
for (unsigned i = 0; i < count; ++i)
{
writeBlock(blocknum + i, buf, tag + i);
}
// should actually aggregate return values but using messages for now
return true;
}
bool TestRunner::readBlock(unsigned int blocknum, unsigned char* buf, unsigned char tag)
{
ssize_t rc = m_file->pread(buf, blocknum * BLK_SIZE, BLK_SIZE);
//cout << "DEBUG: read " << rc << " bytes at offset " << blocknum * BLK_SIZE << endl;
if ((size_t) rc != BLK_SIZE)
{
ostringstream errstr;
errstr << "readBlock failed for block " << blocknum << ", read " << rc << " bytes, expecting " << BLK_SIZE;
logMsg( ERROR, errstr.str() );
return false;
}
else if (tag != buf[0])
{
ostringstream errstr;
errstr << "read tag 0x" << setw(2) << hex << setfill('0') << (int) buf[0] << " at block " << dec
<< blocknum << ", expected 0x" << (int) tag;
logMsg( ERROR, errstr.str() );
return false;
}
return true;
}
bool TestRunner::readBlocks(unsigned int blocknum, unsigned char* buf, unsigned char tag, unsigned int count)
{
for (unsigned i = 0; i < count; ++i)
{
readBlock(blocknum + i, buf, (unsigned char)(tag + i));
}
// should actually aggregate return values but using messages for now
return true;
}
bool TestRunner::doBlock(unsigned int blocknum, unsigned char tag, unsigned int count)
{
writeBlocks(blocknum, m_defbuf, tag, count);
m_file->flush();
if ( m_opts.closeonwrite )
{
delete m_file;
// will have to cache type somewhere later
m_file = IDBDataFile::open( IDBDataFile::HDFS, m_fname.c_str(), "a", m_open_opts );
if ( !m_file )
return false;
}
if ( m_opts.reopen )
{
delete m_file;
// will have to cache type somewhere later
m_file = IDBDataFile::open( IDBDataFile::HDFS, m_fname.c_str(), "r", m_open_opts );
if ( !m_file )
return false;
}
unsigned char buf[BLK_SIZE];
return readBlocks(blocknum, buf, tag, count);
}
void TestRunner::logMsg( LogLevel level, const string& msg, bool bold)
{
boost::mutex::scoped_lock lock( m_guard );
if (bold) cout << "\033[0;1m";
cout << "Test-" << m_id << ":" << ((level == INFO) ? "INFO:" : "ERROR:") << msg << endl;
if (bold) cout << "\033[0;39m";
}
void thread_func( TestRunner& trun )
{
bool ret = true;
// todo-add some capability to use USE_ODIRECT or not
ret = ret && trun.runTest( IDBDataFile::UNBUFFERED, 0 );
// todo-add some capability to use USE_VBUF or not
ret = ret && trun.runTest( IDBDataFile::BUFFERED, 0 );
if ( trun.runOpts().useHdfs )
ret = ret && trun.runTest( IDBDataFile::HDFS, 0 );
trun.logMsg( TestRunner::INFO, string(ret ? "A" : "NOT a") + "ll tests passed!\n", true );
}
int main(int argc, char** argv)
{
foptest_opts opts;
int c;
while ((c = getopt (argc, argv, "adpsrh:b:t:cvuen:l:m:")) != -1)
switch (c)
{
case 'b':
BLK_SIZE = atoi(optarg);
if ( BLK_SIZE > MAX_BLK_SIZE )
{
BLK_SIZE = MAX_BLK_SIZE;
cout << "WARNING: block size exceeds max, using " << BLK_SIZE << endl;
}
else
{
cout << "INFO: using BLK_SIZE " << BLK_SIZE << endl;
}
break;
case 'c':
opts.closeonwrite = true;
cout << "INFO: will close on write" << endl;
break;
case 'd':
opts.usedirect = 1;
cout << "INFO: will open with O_DIRECT" << endl;
break;
case 'p':
opts.preflush = 1;
cout << "INFO: will use read pre-flush" << endl;
break;
case 's':
opts.synconwrite = 1;
cout << "INFO: will fsync after write" << endl;
break;
case 'r':
opts.reopen = 1;
cout << "INFO: will reopen before each read" << endl;
break;
case 't':
opts.numthreads = atoi(optarg);
cout << "INFO: will start " << opts.numthreads << " test threads" << endl;
break;
case 'v':
opts.usevbuf = true;
cout << "INFO: will use setvbuf to disable buffering" << endl;
break;
case 'n':
opts.numblocks = atoi(optarg);
cout << "INFO: will operate on " << opts.numblocks << " blocks" << endl;
break;
case 'l':
opts.largeFile = optarg;
cout << "INFO: will run a large HDFS RDWR test on " << opts.largeFile << endl;
break;
case 'h':
opts.pluginFile = optarg;
cout << "INFO: will load HDFS plugin " << optarg << endl;
break;
case 'm':
opts.hdfsMaxMem = atoi(optarg);
if (opts.hdfsMaxMem)
cout << "INFO: will set hdfsRdwrBufferMaxSize to " << opts.hdfsMaxMem << endl;
else
cout << "INFO: will set hdfsRdwrBufferMaxSize to unlimited" << endl;
break;
default:
usage();
return 1;
}
// init the library with logging enabled
IDBPolicy::init( true, true, "/tmp/rdwr_scratch", opts.hdfsMaxMem);
if ( opts.pluginFile.length() )
opts.useHdfs = true;
//vector<TestRunner>
boost::thread_group thread_group;
for ( int i = 0; i < opts.numthreads; ++i )
{
thread_group.create_thread(boost::bind(thread_func, boost::ref(* (new TestRunner(i, opts)))));
}
thread_group.join_all();
}
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