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Jianfei Jiang edited comment on HDFS-13401 at 4/9/18 9:26 AM: -------------------------------------------------------------- As InternalDirOfViewFs is readonly, The path of a mount path cannot be created if no deeper path is givern. I made a prospective in patch 000, mkdir function for ViewFileSystem is changed when resolving the path. I wonder if it is necessary to make this change and if this change is proper. Try to change mkdir function in FileContext as well. was (Author: jiangjianfei): As InternalDirOfViewFs is readonly, The path of a mount path cannot be created if no deeper path is givern. I changed mkdir function for ViewFileSystem when resolving the path. I wonder if it is necessary to make this change and if this change is proper. Try to change mkdir function in FileContext as well. > Different behavior in mkdir when the target folder of mount table is uncreated > ------------------------------------------------------------------------------ > > Key: HDFS-13401 > URL: https://issues.apache.org/jira/browse/HDFS-13401 > Project: Hadoop HDFS > Issue Type: Bug > Components: federation, hdfs > Affects Versions: 3.0.1 > Reporter: Jianfei Jiang > Priority: Major > Attachments: HDFS-13401.000.patch > > > In federation cases, if we have a config like below: > <property> > <name>fs.viewfs.mounttable.ClusterX.link./foo</name> > <value>hdfs://nn2-clusterx.example.com:8020/footarget</value> > </property> > When the folder hdfs://nn2-clusterx.example.com:8020/projects/footarget is > not actually exist, the command {{hdfs dfs ls /}} can still see the folder, > but the folder is not actually exist. then we try to use mkdir command to > create the viewfs folder {{hdfs dfs mkdir /foo}}, the return code is true, > but the folder is not created. However, when we use {{hdfs dfs mkdir -p > /foo/xxx}} which have a deeper location to create folder, the folder is > successfully created. The results in these two cases may be ambigiuous. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org