10.3 SecondaryNameNode文件目录结构

SecondaryNameNode的目录结构和NameNode的目录结构是一致的, 主要是为了万一NameNode出现故障, 可以方便恢复NameNode.

/opt/module/hadoop-2.7.2/data/tmp/dfs/namesecondary
├── current
│   ├── edits_0000000000000000001-0000000000000000035
│   ├── edits_0000000000000000036-0000000000000000037
│   ├── edits_0000000000000000038-0000000000000000050
│   ├── edits_0000000000000000051-0000000000000000079
│   ├── edits_0000000000000000080-0000000000000000105
│   ├── edits_0000000000000000106-0000000000000000107
│   ├── edits_0000000000000000108-0000000000000000116
│   ├── edits_0000000000000000117-0000000000000000118
│   ├── edits_0000000000000000119-0000000000000000120
│   ├── edits_0000000000000000121-0000000000000000123
│   ├── edits_0000000000000000124-0000000000000000125
│   ├── edits_0000000000000000126-0000000000000000127
│   ├── edits_0000000000000000128-0000000000000000129
│   ├── edits_0000000000000000130-0000000000000000131
│   ├── edits_0000000000000000133-0000000000000000134
│   ├── edits_0000000000000000135-0000000000000000135
│   ├── edits_0000000000000000136-0000000000000000137
│   ├── edits_0000000000000000138-0000000000000000139
│   ├── edits_0000000000000000140-0000000000000000141
│   ├── edits_0000000000000000142-0000000000000000143
│   ├── edits_0000000000000000144-0000000000000000145
│   ├── edits_0000000000000000146-0000000000000000153
│   ├── fsimage_0000000000000000145
│   ├── fsimage_0000000000000000145.md5
│   ├── fsimage_0000000000000000153
│   ├── fsimage_0000000000000000153.md5
│   └── VERSION
└── in_use.lock