Hi, I am sorry that I made a mistake. r3.large has only one SSD which has been mounted in /mnt. Therefore this is no /dev/sdc. In fact, the problem is that there is no space in the under / directory. So you should check whether your application write data under this directory(for instance, save file in file:///).
If not, you can use watch du -sh to during the running time to figure out which directory is expanding. Normally, only /mnt directory which is supported by SSD is expanding significantly, because the data of hdfs is saved here. Then you can find the directory which caused no space problem and find out the specific reason. Cheers Gen On Sun, Feb 8, 2015 at 10:45 PM, ey-chih chow <eyc...@hotmail.com> wrote: > Thanks Gen. How can I check if /dev/sdc is well mounted or not? In > general, the problem shows up when I submit the second or third job. The > first job I submit most likely will succeed. > > Ey-Chih Chow > > ------------------------------ > Date: Sun, 8 Feb 2015 18:18:03 +0100 > > Subject: Re: no space left at worker node > From: gen.tan...@gmail.com > To: eyc...@hotmail.com > CC: user@spark.apache.org > > Hi, > > In fact, /dev/sdb is /dev/xvdb. It seems that there is no problem about > double mount. However, there is no information about /mnt2. You should > check whether /dev/sdc is well mounted or not. > The reply of Micheal is good solution about this type of problem. You can > check his site. > > Cheers > Gen > > > On Sun, Feb 8, 2015 at 5:53 PM, ey-chih chow <eyc...@hotmail.com> wrote: > > Gen, > > Thanks for your information. The content of /etc/fstab at the worker node > (r3.large) is: > > # > LABEL=/ / ext4 defaults,noatime 1 1 > tmpfs /dev/shm tmpfs defaults 0 0 > devpts /dev/pts devpts gid=5,mode=620 0 0 > sysfs /sys sysfs defaults 0 0 > proc /proc proc defaults 0 0 > /dev/sdb /mnt auto > defaults,noatime,nodiratime,comment=cloudconfig 0 0 > /dev/sdc /mnt2 auto > defaults,noatime,nodiratime,comment=cloudconfig 0 0 > > There is no entry of /dev/xvdb. > > Ey-Chih Chow > > ------------------------------ > Date: Sun, 8 Feb 2015 12:09:37 +0100 > Subject: Re: no space left at worker node > From: gen.tan...@gmail.com > To: eyc...@hotmail.com > CC: user@spark.apache.org > > > Hi, > > I fact, I met this problem before. it is a bug of AWS. Which type of > machine do you use? > > If I guess well, you can check the file /etc/fstab. There would be a > double mount of /dev/xvdb. > If yes, you should > 1. stop hdfs > 2. umount /dev/xvdb at / > 3. restart hdfs > > Hope this could be helpful. > Cheers > Gen > > > > On Sun, Feb 8, 2015 at 8:16 AM, ey-chih chow <eyc...@hotmail.com> wrote: > > Hi, > > I submitted a spark job to an ec2 cluster, using spark-submit. At a worker > node, there is an exception of 'no space left on device' as follows. > > ========================================== > 15/02/08 01:53:38 ERROR logging.FileAppender: Error writing stream to file > /root/spark/work/app-20150208014557-0003/0/stdout > java.io.IOException: No space left on device > at java.io.FileOutputStream.writeBytes(Native Method) > at java.io.FileOutputStream.write(FileOutputStream.java:345) > at > > org.apache.spark.util.logging.FileAppender.appendToFile(FileAppender.scala:92) > at > > org.apache.spark.util.logging.FileAppender.appendStreamToFile(FileAppender.scala:72) > at > > org.apache.spark.util.logging.FileAppender$$anon$1$$anonfun$run$1.apply$mcV$sp(FileAppender.scala:39) > at > > org.apache.spark.util.logging.FileAppender$$anon$1$$anonfun$run$1.apply(FileAppender.scala:39) > at > > org.apache.spark.util.logging.FileAppender$$anon$1$$anonfun$run$1.apply(FileAppender.scala:39) > at > org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:1311) > at > > org.apache.spark.util.logging.FileAppender$$anon$1.run(FileAppender.scala:38) > =========================================== > > The command df showed the following information at the worker node: > > Filesystem 1K-blocks Used Available Use% Mounted on > /dev/xvda1 8256920 8256456 0 100% / > tmpfs 7752012 0 7752012 0% /dev/shm > /dev/xvdb 30963708 1729652 27661192 6% /mnt > > Does anybody know how to fix this? Thanks. > > > Ey-Chih Chow > > > > -- > View this message in context: > http://apache-spark-user-list.1001560.n3.nabble.com/no-space-left-at-worker-node-tp21545.html > Sent from the Apache Spark User List mailing list archive at Nabble.com. > > --------------------------------------------------------------------- > To unsubscribe, e-mail: user-unsubscr...@spark.apache.org > For additional commands, e-mail: user-h...@spark.apache.org > > > >
