According to some articles,namenode memory consumption would be like: "Each file or directory or block occupies about 150 bytes in the namenode memory." I found my cluster have 172,963,375 files and directories, 187,792,367 blocks = 360,755,742 total filesystem object(s). But consume 116 GB after GC,Why?
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To which articles do you refer? – Jeroen Heier Oct 25 '18 at 03:50
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https://www.cloudera.com/documentation/enterprise/5-8-x/topics/admin_nn_memory_config.html Because we use hadoop version is :CDH5.7.0-2.6.0 – guangchen.lgc Oct 25 '18 at 06:08