Thank Alok, I deleted mapred.local.dir folders. I more 2 question, 1. I have around 30 databases and each one contains many tables. So, is there any way to find out wat are the size of each database or how much storage a particular table in a database is occupying.
2. We have 5 slave nodes, how to find which tables data is stored on which slave node . Thanks, Chunky. On Mon, Mar 18, 2013 at 10:16 PM, Alok Kumar <alok...@gmail.com> wrote: > Look into your hdfs-site.xml & mapred-site.xml conf files. > > *dfs.data.dir* propety contain your actual HDFS data path, better avoid > deleting anything from these directories. > > *mapred.local.dir* contains temporary map-reduce job data, you can clean > this one. > > "/mnt/hadoop-fs/dfs/data/current/" looks like your hdfs data path, this > mean your hive tables have grown to ~95% of your disk size. try deleting > hive tables or add more disk ( dropping a EXTERNAL hive table doesn't clear > the data from HDFS) > > Thanks, > > > On Mon, Mar 18, 2013 at 9:28 PM, Chunky Gupta <chunky.gu...@vizury.com>wrote: > >> Hi Zhiwen, >> >> /mnt/hadoop-fs/mapred/local/taskTracker/ >> >> Inside this folder there are folders with different user name, can I >> delete these ?. >> >> I do not understand what this {*nouserdir*} you were talking about, can >> you please explain ?. >> >> Thanks, >> Chunky. >> >> >> >> On Mon, Mar 18, 2013 at 8:40 PM, Zhiwen Sun <pens...@gmail.com> wrote: >> >>> The folder "/mnt/hadoop-fs/dfs/data/current/" is the main folder of >>> datanode in hadoop. >>> >>> You can use *hadoop dfs -rmr {nouserdir} *to get more free space in >>> HDFS. >>> >>> *Don't delete file directly in OS file system.* >>> >>> Zhiwen Sun >>> >>> >>> >>> On Mon, Mar 18, 2013 at 6:48 PM, Manish Bhoge < >>> manishbh...@rocketmail.com> wrote: >>> >>>> I think these directories belong to task tracker temporary storage. I >>>> am not very confident to conclude that go ahead with your clean up. So, >>>> wait for similar or an expert's response >>>> >>>> Sent from HTC via Rocket! excuse typo. >>>> >>>> ------------------------------ >>>> * From: * Chunky Gupta <chunky.gu...@vizury.com>; >>>> * To: * <user@hive.apache.org>; >>>> * Subject: * dfs storage full on all slave machines of 6 machine hive >>>> cluster >>>> * Sent: * Mon, Mar 18, 2013 10:37:39 AM >>>> >>>> Hi, >>>> >>>> We have a 6 machine hive cluster. We are getting errors while a query >>>> is running and it fails. I found that on all 5 slaves storage is nearly >>>> full ( 96%, 98%, 100%, 97%, 98% storage used) . >>>> >>>> On my slaves machines, this folder "/mnt/hadoop-fs/dfs/data/current/" >>>> is contributing 95% storage used. It contains folders with names "subdir0", >>>> "subdir1", etc and under them there are many files with name like >>>> "blk_-4071357924681234567" and blk_-4071357924681234567_246813.meta:, etc. >>>> >>>> I want to delete these subdir folders but I am not sure if it will not >>>> affects the tables which I have created. >>>> >>>> Can anyone help me and tell me what are these folders used for ?. >>>> >>>> Thanks, >>>> Chunky. >>>> >>> >>> >> > > > -- > Alok Kumar >