/**
* Validate streams generate the same output.
*
* @param expIn Expected input stream.
* @param actIn Actual input stream.
* @param expSize Expected size of the streams.
* @param seek Seek to use async position-based reading or {@code null} to use simple continuous
* reading.
* @throws IOException In case of any IO exception.
*/
private void assertEqualStreams(
InputStream expIn, GridGgfsInputStream actIn, @Nullable Long expSize, @Nullable Long seek)
throws IOException {
if (seek != null) expIn.skip(seek);
int bufSize = 2345;
byte buf1[] = new byte[bufSize];
byte buf2[] = new byte[bufSize];
long pos = 0;
long start = System.currentTimeMillis();
while (true) {
int read = (int) Math.min(bufSize, expSize - pos);
int i1;
if (seek == null) i1 = actIn.read(buf1, 0, read);
else if (seek % 2 == 0) i1 = actIn.read(pos + seek, buf1, 0, read);
else {
i1 = read;
actIn.readFully(pos + seek, buf1, 0, read);
}
// Read at least 0 byte, but don't read more then 'i1' or 'read'.
int i2 = expIn.read(buf2, 0, Math.max(0, Math.min(i1, read)));
if (i1 != i2) {
fail(
"Expects the same data [read="
+ read
+ ", pos="
+ pos
+ ", seek="
+ seek
+ ", i1="
+ i1
+ ", i2="
+ i2
+ ']');
}
if (i1 == -1) break; // EOF
// i1 == bufSize => compare buffers.
// i1 < bufSize => Compare part of buffers, rest of buffers are equal from previous
// iteration.
assertTrue(
"Expects the same data [read="
+ read
+ ", pos="
+ pos
+ ", seek="
+ seek
+ ", i1="
+ i1
+ ", i2="
+ i2
+ ']',
Arrays.equals(buf1, buf2));
if (read == 0) break; // Nothing more to read.
pos += i1;
}
if (expSize != null) assertEquals(expSize.longValue(), pos);
long time = System.currentTimeMillis() - start;
if (time != 0 && log.isInfoEnabled()) {
log.info(
String.format(
"Streams were compared in continuous reading " + "[size=%7d, rate=%3.1f MB/sec]",
expSize, expSize * 1000. / time / 1024 / 1024));
}
}
/** @throws Exception If failed. */
public void testCreateFileFragmented() throws Exception {
GridGgfsEx impl = (GridGgfsEx) grid(0).ggfs("ggfs");
GridGgfsFragmentizerManager fragmentizer = impl.context().fragmentizer();
GridTestUtils.setFieldValue(fragmentizer, "fragmentizerEnabled", false);
GridGgfsPath path = new GridGgfsPath("/file");
try {
GridGgfs fs0 = grid(0).ggfs("ggfs");
GridGgfs fs1 = grid(1).ggfs("ggfs");
GridGgfs fs2 = grid(2).ggfs("ggfs");
try (GridGgfsOutputStream out =
fs0.create(
path,
128,
false,
1,
CFG_GRP_SIZE,
F.asMap(GridGgfs.PROP_PREFER_LOCAL_WRITES, "true"))) {
// 1.5 blocks
byte[] data = new byte[CFG_BLOCK_SIZE * 3 / 2];
Arrays.fill(data, (byte) 1);
out.write(data);
}
try (GridGgfsOutputStream out = fs1.append(path, false)) {
// 1.5 blocks.
byte[] data = new byte[CFG_BLOCK_SIZE * 3 / 2];
Arrays.fill(data, (byte) 2);
out.write(data);
}
// After this we should have first two block colocated with grid 0 and last block colocated
// with grid 1.
GridGgfsFileImpl fileImpl = (GridGgfsFileImpl) fs.info(path);
GridCache<Object, Object> metaCache = grid(0).cachex(META_CACHE_NAME);
GridGgfsFileInfo fileInfo = (GridGgfsFileInfo) metaCache.get(fileImpl.fileId());
GridGgfsFileMap map = fileInfo.fileMap();
List<GridGgfsFileAffinityRange> ranges = map.ranges();
assertEquals(2, ranges.size());
assertTrue(ranges.get(0).startOffset() == 0);
assertTrue(ranges.get(0).endOffset() == 2 * CFG_BLOCK_SIZE - 1);
assertTrue(ranges.get(1).startOffset() == 2 * CFG_BLOCK_SIZE);
assertTrue(ranges.get(1).endOffset() == 3 * CFG_BLOCK_SIZE - 1);
// Validate data read after colocated writes.
try (GridGgfsInputStream in = fs2.open(path)) {
// Validate first part of file.
for (int i = 0; i < CFG_BLOCK_SIZE * 3 / 2; i++) assertEquals((byte) 1, in.read());
// Validate second part of file.
for (int i = 0; i < CFG_BLOCK_SIZE * 3 / 2; i++) assertEquals((byte) 2, in.read());
assertEquals(-1, in.read());
}
} finally {
GridTestUtils.setFieldValue(fragmentizer, "fragmentizerEnabled", true);
boolean hasData = false;
for (int i = 0; i < NODES_CNT; i++) hasData |= !grid(i).cachex(DATA_CACHE_NAME).isEmpty();
assertTrue(hasData);
fs.delete(path, true);
}
GridTestUtils.retryAssert(
log,
ASSERT_RETRIES,
ASSERT_RETRY_INTERVAL,
new CAX() {
@Override
public void applyx() {
for (int i = 0; i < NODES_CNT; i++)
assertTrue(grid(i).cachex(DATA_CACHE_NAME).isEmpty());
}
});
}