本文整理汇总了Java中org.apache.hadoop.lib.service.Instrumentation.Cron方法的典型用法代码示例。如果您正苦于以下问题：Java Instrumentation.Cron方法的具体用法？Java Instrumentation.Cron怎么用？Java Instrumentation.Cron使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.hadoop.lib.service.Instrumentation的用法示例。
在下文中一共展示了Instrumentation.Cron方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: schedule
import org.apache.hadoop.lib.service.Instrumentation; //导入方法依赖的package包/类
@Override
public void schedule(final Callable<?> callable, long delay, long interval, TimeUnit unit) {
Check.notNull(callable, "callable");
if (!scheduler.isShutdown()) {
LOG.debug("Scheduling callable [{}], interval [{}] seconds, delay [{}] in [{}]",
new Object[]{callable, delay, interval, unit});
Runnable r = new Runnable() {
@Override
public void run() {
String instrName = callable.getClass().getSimpleName();
Instrumentation instr = getServer().get(Instrumentation.class);
if (getServer().getStatus() == Server.Status.HALTED) {
LOG.debug("Skipping [{}], server status [{}]", callable, getServer().getStatus());
instr.incr(INST_GROUP, instrName + ".skips", 1);
} else {
LOG.debug("Executing [{}]", callable);
instr.incr(INST_GROUP, instrName + ".execs", 1);
Instrumentation.Cron cron = instr.createCron().start();
try {
callable.call();
} catch (Exception ex) {
instr.incr(INST_GROUP, instrName + ".fails", 1);
LOG.error("Error executing [{}], {}", new Object[]{callable, ex.getMessage(), ex});
} finally {
instr.addCron(INST_GROUP, instrName, cron.stop());
}
}
}
};
scheduler.scheduleWithFixedDelay(r, delay, interval, unit);
} else {
throw new IllegalStateException(
MessageFormat.format("Scheduler shutting down, ignoring scheduling of [{}]", callable));
}
}
示例2: schedule
import org.apache.hadoop.lib.service.Instrumentation; //导入方法依赖的package包/类
@Override
public void schedule(final Callable<?> callable, long delay, long interval,
TimeUnit unit) {
Check.notNull(callable, "callable");
if (!scheduler.isShutdown()) {
LOG.debug(
"Scheduling callable [{}], interval [{}] seconds, delay [{}] in [{}]",
new Object[]{callable, delay, interval, unit});
Runnable r = new Runnable() {
@Override
public void run() {
String instrName = callable.getClass().getSimpleName();
Instrumentation instr = getServer().get(Instrumentation.class);
if (getServer().getStatus() == Server.Status.HALTED) {
LOG.debug("Skipping [{}], server status [{}]", callable,
getServer().getStatus());
instr.incr(INST_GROUP, instrName + ".skips", 1);
} else {
LOG.debug("Executing [{}]", callable);
instr.incr(INST_GROUP, instrName + ".execs", 1);
Instrumentation.Cron cron = instr.createCron().start();
try {
callable.call();
} catch (Exception ex) {
instr.incr(INST_GROUP, instrName + ".fails", 1);
LOG.error("Error executing [{}], {}",
new Object[]{callable, ex.getMessage(), ex});
} finally {
instr.addCron(INST_GROUP, instrName, cron.stop());
}
}
}
};
scheduler.scheduleWithFixedDelay(r, delay, interval, unit);
} else {
throw new IllegalStateException(MessageFormat
.format("Scheduler shutting down, ignoring scheduling of [{}]",
callable));
}
}
示例3: addCron
import org.apache.hadoop.lib.service.Instrumentation; //导入方法依赖的package包/类
@Override
public void addCron(String group, String name, Instrumentation.Cron cron) {
Timer timer = getToAdd(group, name, Timer.class, timerLock, timers);
timer.addCron((Cron) cron);
}
示例4: service
import org.apache.hadoop.lib.service.Instrumentation; //导入方法依赖的package包/类
@Test
@TestDir
@SuppressWarnings("unchecked")
public void service() throws Exception {
String dir = TestDirHelper.getTestDir().getAbsolutePath();
String services = StringUtils.join(",", Arrays.asList(InstrumentationService.class.getName()));
Configuration conf = new Configuration(false);
conf.set("server.services", services);
Server server = new Server("server", dir, dir, dir, dir, conf);
server.init();
Instrumentation instrumentation = server.get(Instrumentation.class);
assertNotNull(instrumentation);
instrumentation.incr("g", "c", 1);
instrumentation.incr("g", "c", 2);
instrumentation.incr("g", "c1", 2);
Instrumentation.Cron cron = instrumentation.createCron();
cron.start();
sleep(100);
cron.stop();
instrumentation.addCron("g", "t", cron);
cron = instrumentation.createCron();
cron.start();
sleep(200);
cron.stop();
instrumentation.addCron("g", "t", cron);
Instrumentation.Variable<String> var = new Instrumentation.Variable<String>() {
@Override
public String getValue() {
return "foo";
}
};
instrumentation.addVariable("g", "v", var);
Instrumentation.Variable<Long> varToSample = new Instrumentation.Variable<Long>() {
@Override
public Long getValue() {
return 1L;
}
};
instrumentation.addSampler("g", "s", 10, varToSample);
Map<String, ?> snapshot = instrumentation.getSnapshot();
assertNotNull(snapshot.get("os-env"));
assertNotNull(snapshot.get("sys-props"));
assertNotNull(snapshot.get("jvm"));
assertNotNull(snapshot.get("counters"));
assertNotNull(snapshot.get("timers"));
assertNotNull(snapshot.get("variables"));
assertNotNull(snapshot.get("samplers"));
assertNotNull(((Map<String, String>) snapshot.get("os-env")).get("PATH"));
assertNotNull(((Map<String, String>) snapshot.get("sys-props")).get("java.version"));
assertNotNull(((Map<String, ?>) snapshot.get("jvm")).get("free.memory"));
assertNotNull(((Map<String, ?>) snapshot.get("jvm")).get("max.memory"));
assertNotNull(((Map<String, ?>) snapshot.get("jvm")).get("total.memory"));
assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("counters")).get("g"));
assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("timers")).get("g"));
assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("variables")).get("g"));
assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("samplers")).get("g"));
assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("counters")).get("g").get("c"));
assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("counters")).get("g").get("c1"));
assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("timers")).get("g").get("t"));
assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("variables")).get("g").get("v"));
assertNotNull(((Map<String, Map<String, Object>>) snapshot.get("samplers")).get("g").get("s"));
StringWriter writer = new StringWriter();
JSONObject.writeJSONString(snapshot, writer);
writer.close();
server.destroy();
}