/**
* Waits until total number of events processed is equal or greater then argument passed.
*
* @param cnt Number of events to wait.
* @param timeout Timeout to wait.
* @return {@code True} if successfully waited, {@code false} if timeout happened.
* @throws InterruptedException If thread is interrupted.
*/
public synchronized boolean awaitEvents(int cnt, long timeout) throws InterruptedException {
long start = U.currentTimeMillis();
long now = start;
while (start + timeout > now) {
if (evtCnt >= cnt) return true;
wait(start + timeout - now);
now = U.currentTimeMillis();
}
return false;
}
/** @return Nodes to execute on. */
private Collection<ClusterNode> nodes() {
CacheMode cacheMode = cctx.config().getCacheMode();
switch (cacheMode) {
case LOCAL:
if (prj != null)
U.warn(
log,
"Ignoring query projection because it's executed over LOCAL cache "
+ "(only local node will be queried): "
+ this);
return Collections.singletonList(cctx.localNode());
case REPLICATED:
if (prj != null || partition() != null) return nodes(cctx, prj, partition());
return cctx.affinityNode()
? Collections.singletonList(cctx.localNode())
: Collections.singletonList(F.rand(nodes(cctx, null, partition())));
case PARTITIONED:
return nodes(cctx, prj, partition());
default:
throw new IllegalStateException("Unknown cache distribution mode: " + cacheMode);
}
}
/**
* Checks that cache is empty.
*
* @param cache Cache to check.
* @throws org.apache.ignite.internal.IgniteInterruptedCheckedException If interrupted while
* sleeping.
*/
@SuppressWarnings({"ErrorNotRethrown", "TypeMayBeWeakened"})
private void checkEmpty(IgniteCache<String, String> cache)
throws IgniteInterruptedCheckedException {
for (int i = 0; i < 3; i++) {
try {
assertTrue(!cache.iterator().hasNext());
break;
} catch (AssertionError e) {
if (i == 2) throw e;
info(">>> Cache is not empty, flushing evictions.");
U.sleep(1000);
}
}
}
/**
* Check how prefetch override works.
*
* @throws Exception IF failed.
*/
public void testOpenPrefetchOverride() throws Exception {
create(igfsSecondary, paths(DIR, SUBDIR), paths(FILE));
// Write enough data to the secondary file system.
final int blockSize = IGFS_BLOCK_SIZE;
IgfsOutputStream out = igfsSecondary.append(FILE, false);
int totalWritten = 0;
while (totalWritten < blockSize * 2 + chunk.length) {
out.write(chunk);
totalWritten += chunk.length;
}
out.close();
awaitFileClose(igfsSecondary.asSecondary(), FILE);
// Instantiate file system with overridden "seq reads before prefetch" property.
Configuration cfg = new Configuration();
cfg.addResource(U.resolveIgniteUrl(PRIMARY_CFG));
int seqReads = SEQ_READS_BEFORE_PREFETCH + 1;
cfg.setInt(String.format(PARAM_IGFS_SEQ_READS_BEFORE_PREFETCH, "igfs:grid@"), seqReads);
FileSystem fs = FileSystem.get(new URI(PRIMARY_URI), cfg);
// Read the first two blocks.
Path fsHome = new Path(PRIMARY_URI);
Path dir = new Path(fsHome, DIR.name());
Path subdir = new Path(dir, SUBDIR.name());
Path file = new Path(subdir, FILE.name());
FSDataInputStream fsIn = fs.open(file);
final byte[] readBuf = new byte[blockSize * 2];
fsIn.readFully(0, readBuf, 0, readBuf.length);
// Wait for a while for prefetch to finish (if any).
IgfsMetaManager meta = igfs.context().meta();
IgfsFileInfo info = meta.info(meta.fileId(FILE));
IgfsBlockKey key = new IgfsBlockKey(info.id(), info.affinityKey(), info.evictExclude(), 2);
IgniteCache<IgfsBlockKey, byte[]> dataCache =
igfs.context().kernalContext().cache().jcache(igfs.configuration().getDataCacheName());
for (int i = 0; i < 10; i++) {
if (dataCache.containsKey(key)) break;
else U.sleep(100);
}
fsIn.close();
// Remove the file from the secondary file system.
igfsSecondary.delete(FILE, false);
// Try reading the third block. Should fail.
GridTestUtils.assertThrows(
log,
new Callable<Object>() {
@Override
public Object call() throws Exception {
IgfsInputStream in0 = igfs.open(FILE);
in0.seek(blockSize * 2);
try {
in0.read(readBuf);
} finally {
U.closeQuiet(in0);
}
return null;
}
},
IOException.class,
"Failed to read data due to secondary file system exception: /dir/subdir/file");
}