ES version: 5.4.3
java version: 1.8.0_162
ES was running normally and GC is normal too. But one node suddenly OOM with "fatal error on the network layer"
Does anyone meet this before? How to debug this problem ?
Thank you in advance!
By default Elasticsearch will write a heap dump when it encounters an OutOfMemoryError. The best thing to do is to open this heap dump (e.g. in MAT) and investigate what was using all the heap.
thanks， I will try
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