hrsakai commented on issue #3535: Deduplication causes a lot of Full GCs URL: https://github.com/apache/pulsar/issues/3535#issuecomment-463607493 @merlimat Here are outouts of `jmap -histo`. [jmap-histo.txt](https://github.com/apache/pulsar/files/2864880/jmap-histo.txt) [jmap-histo-live.txt](https://github.com/apache/pulsar/files/2864881/jmap-histo-live.txt) Specs of this broker is different from those of a broker in the above test. So, memory settings of this broker is different: ``` -Xms3g -Xmx3g ``` Full GC log (caused by `jmap histo:live`) ``` 2019-02-14T21:02:53.684+0900: 38477.063: [Full GC (Heap Inspection Initiated GC) 1222M->125M(3072M), 2.4529610 secs] [Eden: 61.0M(1416.0M)->0.0B(1536.0M) Survivors: 120.0M->0.0B Heap: 1222.8M(3072.0M)->125.7M(3072.0M)], [Metaspace: 74890K->74877K(1118208K)] [Times: user=1.41 sys=0.00, real=2.45 secs] ```
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