[英]java.util.ConcurrentModificationException when adding some key to metadata in stormcrawler
我在元數據中添加了一個字段，用於傳輸和保存在狀態索引中。 該字段是一個字符串列表，其名稱是input_keywords 。 在 Strom 集群中運行拓撲后，拓撲停止並顯示以下日志：
java.lang.RuntimeException: com.esotericsoftware.kryo.KryoException: java.util.ConcurrentModificationException
Serialization trace:
md (com.digitalpebble.stormcrawler.Metadata)
at org.apache.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:522) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.utils.DisruptorQueue.consumeBatchWhenAvailable(DisruptorQueue.java:487) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.disruptor$consume_batch_when_available.invoke(disruptor.clj:74) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.disruptor$consume_loop_STAR_$fn__4132.invoke(disruptor.clj:84) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.util$async_loop$fn__1221.invoke(util.clj:484) [storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at clojure.lang.AFn.run(AFn.java:22) [clojure-1.7.0.jar:?]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_112]
Caused by: com.esotericsoftware.kryo.KryoException: java.util.ConcurrentModificationException
Serialization trace:
md (com.digitalpebble.stormcrawler.Metadata)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:101) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:518) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:628) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.serializers.CollectionSerializer.write(CollectionSerializer.java:100) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.serializers.CollectionSerializer.write(CollectionSerializer.java:40) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:534) ~[kryo-3.0.3.jar:?]
at org.apache.storm.serialization.KryoValuesSerializer.serializeInto(KryoValuesSerializer.java:44) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.serialization.KryoTupleSerializer.serialize(KryoTupleSerializer.java:44) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.daemon.worker$mk_transfer_fn$transfer_fn__10378.invoke(worker.clj:203) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.daemon.executor$start_batch_transfer_GT_worker_handler_BANG$fn__10056.invoke(executor.clj:314) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.disruptor$clojure_handler$reify__4115.onEvent(disruptor.clj:41) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:509) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
... 6 more
Caused by: java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextNode(HashMap.java:1437) ~[?:1.8.0_112]
at java.util.HashMap$EntryIterator.next(HashMap.java:1471) ~[?:1.8.0_112]
at java.util.HashMap$EntryIterator.next(HashMap.java:1469) ~[?:1.8.0_112]
at com.esotericsoftware.kryo.serializers.MapSerializer.write(MapSerializer.java:99) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.serializers.MapSerializer.write(MapSerializer.java:39) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:552) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:80) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:518) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:628) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.serializers.CollectionSerializer.write(CollectionSerializer.java:100) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.serializers.CollectionSerializer.write(CollectionSerializer.java:40) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:534) ~[kryo-3.0.3.jar:?]
at org.apache.storm.serialization.KryoValuesSerializer.serializeInto(KryoValuesSerializer.java:44) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.serialization.KryoTupleSerializer.serialize(KryoTupleSerializer.java:44) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.daemon.worker$mk_transfer_fn$transfer_fn__10378.invoke(worker.clj:203) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.daemon.executor$start_batch_transfer_GT_worker_handler_BANG$fn__10056.invoke(executor.clj:314) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.disruptor$clojure_handler$reify__4115.onEvent(disruptor.clj:41) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:509) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
... 6 more
2021-02-27 08:03:34.276 o.a.s.d.executor Thread-20-disruptor-executor[45 45]-send-queue [ERROR]
java.lang.RuntimeException: com.esotericsoftware.kryo.KryoException: java.util.ConcurrentModificationException
Serialization trace:
md (com.digitalpebble.stormcrawler.Metadata)
at org.apache.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:522) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.utils.DisruptorQueue.consumeBatchWhenAvailable(DisruptorQueue.java:487) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.disruptor$consume_batch_when_available.invoke(disruptor.clj:74) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.disruptor$consume_loop_STAR_$fn__4132.invoke(disruptor.clj:84) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.util$async_loop$fn__1221.invoke(util.clj:484) [storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at clojure.lang.AFn.run(AFn.java:22) [clojure-1.7.0.jar:?]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_112]
Caused by: com.esotericsoftware.kryo.KryoException: java.util.ConcurrentModificationException
Serialization trace:
md (com.digitalpebble.stormcrawler.Metadata)
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:101) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:518) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:628) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.serializers.CollectionSerializer.write(CollectionSerializer.java:100) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.serializers.CollectionSerializer.write(CollectionSerializer.java:40) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:534) ~[kryo-3.0.3.jar:?]
at org.apache.storm.serialization.KryoValuesSerializer.serializeInto(KryoValuesSerializer.java:44) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.serialization.KryoTupleSerializer.serialize(KryoTupleSerializer.java:44) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.daemon.worker$mk_transfer_fn$transfer_fn__10378.invoke(worker.clj:203) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.daemon.executor$start_batch_transfer_GT_worker_handler_BANG$fn__10056.invoke(executor.clj:314) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.disruptor$clojure_handler$reify__4115.onEvent(disruptor.clj:41) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:509) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
... 6 more
Caused by: java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextNode(HashMap.java:1437) ~[?:1.8.0_112]
at java.util.HashMap$EntryIterator.next(HashMap.java:1471) ~[?:1.8.0_112]
at java.util.HashMap$EntryIterator.next(HashMap.java:1469) ~[?:1.8.0_112]
at com.esotericsoftware.kryo.serializers.MapSerializer.write(MapSerializer.java:99) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.serializers.MapSerializer.write(MapSerializer.java:39) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:552) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:80) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:518) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:628) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.serializers.CollectionSerializer.write(CollectionSerializer.java:100) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.serializers.CollectionSerializer.write(CollectionSerializer.java:40) ~[kryo-3.0.3.jar:?]
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:534) ~[kryo-3.0.3.jar:?]
at org.apache.storm.serialization.KryoValuesSerializer.serializeInto(KryoValuesSerializer.java:44) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.serialization.KryoTupleSerializer.serialize(KryoTupleSerializer.java:44) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.daemon.worker$mk_transfer_fn$transfer_fn__10378.invoke(worker.clj:203) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.daemon.executor$start_batch_transfer_GT_worker_handler_BANG$fn__10056.invoke(executor.clj:314) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.disruptor$clojure_handler$reify__4115.onEvent(disruptor.clj:41) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:509) ~[storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
... 6 more
2021-02-27 08:03:34.327 o.a.s.util Thread-20-disruptor-executor[45 45]-send-queue [ERROR] Halting process: ("Worker died")
java.lang.RuntimeException: ("Worker died")
at org.apache.storm.util$exit_process_BANG_.doInvoke(util.clj:341) [storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at clojure.lang.RestFn.invoke(RestFn.java:423) [clojure-1.7.0.jar:?]
at org.apache.storm.daemon.worker$fn_10827$fn_10828.invoke(worker.clj:781) [storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.daemon.executor$mk_executor_data$fn_10034$fn_10035.invoke(executor.clj:281) [storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at org.apache.storm.util$async_loop$fn__1221.invoke(util.clj:494) [storm-core-1.2.1.3.1.4.0-315.jar:1.2.1.3.1.4.0-315]
at clojure.lang.AFn.run(AFn.java:22) [clojure-1.7.0.jar:?]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_112]
我們對拓撲的每個組件都有不同的並行提示。 將input_keywords添加到元數據后，我們得到了錯誤。 錯誤的主要原因是什么？
您在序列化元數據實例時對其進行修改。 您不能這樣做，請參閱Storm 故障排除頁面。
如1.16 的發行說明中所述，您可以鎖定元數據。 這不會解決問題，但會告訴您在代碼中的哪個位置寫入元數據。
In our topology, we emitted the same metadata to multiple bolts at the same time.
謎底解釋。 不要那樣做。
序列化為 Json 時避免 ConcurrentModificationException？
[英]Avoiding ConcurrentModificationException when serializing to Json?
如何從序列化為JSON的java.util.Map中訪問值，其中鍵是帶有Javascript的ebean.Model
[英]How to access values from a java.util.Map that was serialized to JSON where the key is an ebean.Model with Javascript
需要在不使用java.util.Map的情況下創建可序列化的鍵值映射，請使用我的解決方法繼續運行NullPointerException
[英]Need to create a serializable key value map without using java.util.Map, keep running into NullPointerException with my workaround
NotSerializableException：java.util.regex.Matcher
[英]NotSerializableException: java.util.regex.Matcher
java.io.NotSerializableException：java.util.WeakHashMap
[英]java.io.NotSerializableException: java.util.WeakHashMap
聲明:本站的技術帖子網頁，遵循CC BY-SA 4.0協議，如果您需要轉載，請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.