Apache flink 无法在与其他源代码联合的Apache Flink中的自定义源代码函数中休眠
我有两个源,一个是卡夫卡源,一个是自定义源,我需要做一个睡眠自定义源一个小时,但我得到以下中断Apache flink 无法在与其他源代码联合的Apache Flink中的自定义源代码函数中休眠,apache-flink,flink-streaming,flink-batch,Apache Flink,Flink Streaming,Flink Batch,我有两个源,一个是卡夫卡源,一个是自定义源,我需要做一个睡眠自定义源一个小时,但我得到以下中断 java.lang.InterruptedException: sleep interrupted at java.lang.Thread.sleep(Native Method) at com.hulu.hiveIngestion.HiveAddPartitionThread.run(HiveAddPartitionThread.java:48) at org.apache.
java.lang.InterruptedException: sleep interrupted
at java.lang.Thread.sleep(Native Method)
at com.hulu.hiveIngestion.HiveAddPartitionThread.run(HiveAddPartitionThread.java:48)
at org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:100)
at org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:63)
at org.apache.flink.streaming.runtime.tasks.SourceStreamTask$LegacySourceFunctionThread.run(SourceStreamTask.java:201)
代码:
.union()
公共类自定义_源实现SourceFunction{
公共作废运行(SourceContext ctx){
while(true)
{
睡眠(1000);
ctx.收集(“字符串”);
}
}
}
如何使睡眠自定义源,而卡夫卡源将继续其流。为什么会出现线程中断异常?这更像是一个Java问题,而不是Flink问题。简而言之,您永远不能依赖Thread.sleep(x)来睡眠x毫秒。正确支持中断也很重要,否则您无法正常关闭作业
public class custom_source implements SourceFunction<String> {
private static final Duration SLEEP_DURATION = Duration.ofHours(1);
private volatile boolean isCanceled = false;
public void run(SourceContext<String> ctx) {
while (!isCanceled) {
// 1 hour wait time
LocalTime end = LocalTime.now().plusHours(1);
// this loop ensures that random interruption is not prematurely closing the source
while (LocalTime.now().compareTo(end) < 0) {
try {
Thread.sleep(Duration.between(LocalTime.now(), end).toMillis());
} catch (InterruptedException e) {
// swallow interruption unless source is canceled
if (isCanceled) {
Thread.interrupted();
return;
}
}
}
ctx.collect("string");
}
}
@Override
public void cancel() {
isCanceled = true;
}
}
公共类自定义\u源实现SourceFunction{
专用静态最终持续时间睡眠时间=持续时间(1);
private volatile boolean isCanceled=false;
公共作废运行(SourceContext ctx){
而(!isCanceled){
//1小时等待时间
LocalTime end=LocalTime.now().plusHours(1);
//此循环确保随机中断不会过早关闭源
while(LocalTime.now().compareTo(end)<0){
试一试{
sleep(Duration.between(LocalTime.now(),end.toMillis());
}捕捉(中断异常e){
//吞咽中断,除非源被取消
如果(已取消){
Thread.interrupted();
返回;
}
}
}
ctx.收集(“字符串”);
}
}
@凌驾
公开作废取消(){
isCanceled=true;
}
}
public class custom_source implements SourceFunction<String> {
private static final Duration SLEEP_DURATION = Duration.ofHours(1);
private volatile boolean isCanceled = false;
public void run(SourceContext<String> ctx) {
while (!isCanceled) {
// 1 hour wait time
LocalTime end = LocalTime.now().plusHours(1);
// this loop ensures that random interruption is not prematurely closing the source
while (LocalTime.now().compareTo(end) < 0) {
try {
Thread.sleep(Duration.between(LocalTime.now(), end).toMillis());
} catch (InterruptedException e) {
// swallow interruption unless source is canceled
if (isCanceled) {
Thread.interrupted();
return;
}
}
}
ctx.collect("string");
}
}
@Override
public void cancel() {
isCanceled = true;
}
}