@After
public void tearDown() throws Exception {
super.tearDown();
if (readerContext != null) {
readerContext.reader().close();
}
writer.close();
}
@Test
public void verifyThreadNames() throws Exception {
ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
Set<String> preNodeStartThreadNames = Sets.newHashSet();
for (long l : threadBean.getAllThreadIds()) {
ThreadInfo threadInfo = threadBean.getThreadInfo(l);
if (threadInfo != null) {
preNodeStartThreadNames.add(threadInfo.getThreadName());
}
}
logger.info("pre node threads are {}", preNodeStartThreadNames);
String node = internalCluster().startNode();
logger.info("do some indexing, flushing, optimize, and searches");
int numDocs = randomIntBetween(2, 100);
IndexRequestBuilder[] builders = new IndexRequestBuilder[numDocs];
for (int i = 0; i < numDocs; ++i) {
builders[i] =
client()
.prepareIndex("idx", "type")
.setSource(
jsonBuilder()
.startObject()
.field("str_value", "s" + i)
.field("str_values", new String[] {"s" + (i * 2), "s" + (i * 2 + 1)})
.field("l_value", i)
.field("l_values", new int[] {i * 2, i * 2 + 1})
.field("d_value", i)
.field("d_values", new double[] {i * 2, i * 2 + 1})
.endObject());
}
indexRandom(true, builders);
int numSearches = randomIntBetween(2, 100);
for (int i = 0; i < numSearches; i++) {
assertNoFailures(
client()
.prepareSearch("idx")
.setQuery(QueryBuilders.termQuery("str_value", "s" + i))
.get());
assertNoFailures(
client().prepareSearch("idx").setQuery(QueryBuilders.termQuery("l_value", i)).get());
}
Set<String> threadNames = Sets.newHashSet();
for (long l : threadBean.getAllThreadIds()) {
ThreadInfo threadInfo = threadBean.getThreadInfo(l);
if (threadInfo != null) {
threadNames.add(threadInfo.getThreadName());
}
}
logger.info("post node threads are {}", threadNames);
threadNames.removeAll(preNodeStartThreadNames);
logger.info("post node *new* threads are {}", threadNames);
for (String threadName : threadNames) {
// ignore some shared threads we know that are created within the same VM, like the shared
// discovery one
// or the ones that are occasionally come up from ElasticsearchSingleNodeTest
if (threadName.contains("[" + MulticastChannel.SHARED_CHANNEL_NAME + "]")
|| threadName.contains("[" + ElasticsearchSingleNodeTest.nodeName() + "]")
|| threadName.contains("Keep-Alive-Timer")) {
continue;
}
String nodePrefix =
"("
+ Pattern.quote(InternalTestCluster.TRANSPORT_CLIENT_PREFIX)
+ ")?("
+ Pattern.quote(ElasticsearchIntegrationTest.SUITE_CLUSTER_NODE_PREFIX)
+ "|"
+ Pattern.quote(ElasticsearchIntegrationTest.TEST_CLUSTER_NODE_PREFIX)
+ "|"
+ Pattern.quote(TribeTests.SECOND_CLUSTER_NODE_PREFIX)
+ ")";
assertThat(threadName, RegexMatcher.matches("\\[" + nodePrefix + "\\d+\\]"));
}
}