to azuryyyu, to enable symlink support in hdfs.
Or is there an non-testing option for symlink? thanks. 2013/12/16 Azuryy Yu <azury...@gmail.com> > Why enable test flag under non-test environment? > > > On Mon, Dec 16, 2013 at 11:10 AM, Xiaobin She <xiaobin...@gmail.com>wrote: > >> To Vinod, >> >> thank you for your reply, I found that I got this error message because I >> did not add the following property in the hdfs-site.xml file >> >> 28 <property> >> 29 <name>test.SymlinkEnabledForTesting</name> >> 30 <value>true</value> >> 31 </property> >> >> >> now the problem is solved. >> >> thanks again. >> >> >> >> >> >> 2013/12/14 Vinod Kumar Vavilapalli <vino...@hortonworks.com> >> >>> What version of Hadoop? >>> >>> Thanks, >>> +Vinod >>> >>> On Dec 13, 2013, at 1:57 AM, Xiaobin She <xiaobin...@gmail.com> wrote: >>> >>> I'm writting an c++ programme, and I need to deal with hdfs. >>> >>> What I need is to create some file in hdfs and read the status of these >>> files. >>> >>> And I need to be able to create sym link in hdfs and need to know if an >>> file in hdfs is an sym link file or not. >>> >>> According to what I have known, the c client lib of hdfs ( which is >>> libhdfs) does not support sym link. >>> >>> And I have notice that there is an webhdfs interface for hdfs. >>> >>> According to this page, it does support sym link. >>> >>> >>> >>> http://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-hdfs/WebHDFS.html#Create_a_Symbolic_Link >>> >>> >>> But I have try this, and I got the following message. >>> >>> {"RemoteException":{"exception":"UnsupportedOperationException","javaClassName":"java.lang.UnsupportedOperationException","message":"Symlinks >>> not supported"}} >>> >>> >>> Does this means webhdfs does not support sym link too ? >>> >>> So if this true, how can I create an sym link and get the status of this >>> file in c++ code? >>> >>> thank you very much for your help. >>> >>> >>> >>> CONFIDENTIALITY NOTICE >>> NOTICE: This message is intended for the use of the individual or entity >>> to which it is addressed and may contain information that is confidential, >>> privileged and exempt from disclosure under applicable law. If the reader >>> of this message is not the intended recipient, you are hereby notified that >>> any printing, copying, dissemination, distribution, disclosure or >>> forwarding of this communication is strictly prohibited. If you have >>> received this communication in error, please contact the sender immediately >>> and delete it from your system. Thank You. >> >> >> >
