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ArrayIndexOutOfBoundsException in CollectionMetric.getValueAndReset() #555

jnioche opened this Issue Mar 28, 2018 · 0 comments


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jnioche commented Mar 28, 2018

Caused by: java.lang.ArrayIndexOutOfBoundsException: 9
	at java.util.LinkedList.toArray( ~[?:1.8.0_161]
	at java.util.LinkedList.addAll( ~[?:1.8.0_161]
	at java.util.LinkedList.addAll( ~[?:1.8.0_161]
	at java.util.LinkedList.<init>( ~[?:1.8.0_161]
	at com.digitalpebble.stormcrawler.util.CollectionMetric.getValueAndReset( ~[stormjar.jar:?]
	at org.apache.storm.daemon.executor$metrics_tick$fn__4899.invoke(executor.clj:345) ~[storm-core-1.2.1.jar:1.2.1]
	at clojure.core$map$fn__4553.invoke(core.clj:2622) ~[clojure-1.7.0.jar:?]

LinkedList<Long> copy = new LinkedList<>(measurements);

The metric object is used by

My guess is that the spout instance is trying to add the list while it is being copied. We could simply add synchronized blocks to prevent concurrent access to the list.

@jnioche jnioche added the bug label Mar 28, 2018

@jnioche jnioche added this to the 1.9 milestone Mar 28, 2018

@jnioche jnioche closed this in b16e6ae Mar 28, 2018

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