/**
* 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);
}
}
}
/**
* Executes command using {@code shell} channel.
*
* @param ses SSH session.
* @param cmd Command.
* @throws JSchException In case of SSH error.
* @throws IOException If IO error occurs.
* @throws IgniteInterruptedCheckedException If thread was interrupted while waiting.
*/
private void shell(Session ses, String cmd)
throws JSchException, IOException, IgniteInterruptedCheckedException {
ChannelShell ch = null;
try {
ch = (ChannelShell) ses.openChannel("shell");
ch.connect();
try (PrintStream out = new PrintStream(ch.getOutputStream(), true)) {
out.println(cmd);
U.sleep(1000);
}
} finally {
if (ch != null && ch.isConnected()) ch.disconnect();
}
}
/**
* Calls garbage collector and wait.
*
* @throws Exception if any thread has interrupted the current thread while waiting.
*/
private void gc() throws Exception {
Runtime rt = Runtime.getRuntime();
long freeMem0 = rt.freeMemory();
long freeMem = Long.MAX_VALUE;
int cnt = 0;
while (freeMem0 < freeMem && cnt < GC_CALL_CNT) {
System.gc();
U.sleep(WAIT_TIME);
cnt++;
freeMem = freeMem0;
freeMem0 = rt.freeMemory();
}
}
/**
* 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");
}
/**
* Sends cache query response.
*
* @param nodeId Node to send response.
* @param res Cache query response.
* @param timeout Message timeout.
* @return {@code true} if response was sent, {@code false} otherwise.
*/
private boolean sendQueryResponse(UUID nodeId, GridCacheQueryResponse res, long timeout) {
ClusterNode node = cctx.node(nodeId);
if (node == null) return false;
int attempt = 1;
IgniteCheckedException err = null;
while (!Thread.currentThread().isInterrupted()) {
try {
if (log.isDebugEnabled()) log.debug("Send query response: " + res);
Object topic = topic(nodeId, res.requestId());
cctx.io()
.sendOrderedMessage(
node, topic, res, cctx.ioPolicy(), timeout > 0 ? timeout : Long.MAX_VALUE);
return true;
} catch (ClusterTopologyCheckedException ignored) {
if (log.isDebugEnabled())
log.debug(
"Failed to send query response since node left grid [nodeId="
+ nodeId
+ ", res="
+ res
+ "]");
return false;
} catch (IgniteCheckedException e) {
if (err == null) err = e;
if (Thread.currentThread().isInterrupted()) break;
if (attempt < RESEND_ATTEMPTS) {
if (log.isDebugEnabled())
log.debug(
"Failed to send queries response (will try again) [nodeId="
+ nodeId
+ ", res="
+ res
+ ", attempt="
+ attempt
+ ", err="
+ e
+ "]");
if (!Thread.currentThread().isInterrupted())
try {
U.sleep(RESEND_FREQ);
} catch (IgniteInterruptedCheckedException e1) {
U.error(
log,
"Waiting for queries response resending was interrupted (response will not be sent) "
+ "[nodeId="
+ nodeId
+ ", response="
+ res
+ "]",
e1);
return false;
}
} else {
U.error(
log,
"Failed to sender cache response [nodeId=" + nodeId + ", response=" + res + "]",
err);
return false;
}
}
attempt++;
}
return false;
}