如何自动化Hadoop垃圾清理 [英] How To Automate Hadoop Trash Cleanup
问题描述
我可以通过运行 hadoop fs -expunge
清除我的用户文件夹下的垃圾桶。这样可以清除比 fs.trash.interval
值。是否有一个清除自动发生恢复磁盘空间?
I can clear trash under my user folder by running hadoop fs -expunge
This gets rid of files that are older than the fs.trash.interval
value. Is there a for expunge to happen automatically to recover diskspace?
另外,我在运行expunge时看到以下输出
Also I see the following output when I run expunge
[cloudera @ localhost conf] $ hadoop fs -expunge
14/07/17 15:43:54信息fs.TrashPolicyDefault:Namenode垃圾配置:删除间隔= 1分钟,Emptier间隔= 0分钟。
空载程序间隔为0,这表示自动清理已关闭。这个值在哪里配置?
The emptier interval is 0 which suggests that automated clean up is turned off. Where is this value configured?
推荐答案
代码表明它被称为 fs.trash.interval
。
编辑:对不起,误解了这个问题。
Sorry, misunderstood the question.
此处,在那里我们可以看到相关常量似乎是 FS_TRASH_CHECKPOINT_INTERVAL_KEY
。
The emptier implementation itself is here, where we can see the relevant constant seems to be FS_TRASH_CHECKPOINT_INTERVAL_KEY
.
展望此处揭示关键是 fs.trash.checkpoint.interval
。
编辑:最后找到了xml conf条目此处。
Finally found the xml conf entry here.
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