Docker Community Forums

Share and learn in the Docker community.

UCP 0.5 failed to join due to not enought memory, but machine has enought


(Meszarosl) #1

Hello,

I wanted to try the new UCP and I could install it on a node so the master is available (this virtual machine has 2 gigabyte of ram.)
But when I wanted to join a node it is failing.
Reason: “FATA[0000] Your system does not have available disk space. UCP requires a minimum of 3.00 GB, but you only have 2.28 GB”

It is quite simple I don’t have enought memory. First it was true, but later I turn off the virtual machine and increased the machine memory to 4GB, but the error message is the same.
How can I fix this ?

root@lmesz-node2:/# cat /proc/meminfo
MemTotal: 4048088 kB
MemFree: 3800984 kB
MemAvailable: 3797480 kB
Buffers: 36188 kB
Cached: 108388 kB
SwapCached: 0 kB
Active: 133364 kB
Inactive: 49456 kB
Active(anon): 38452 kB
Inactive(anon): 224 kB
Active(file): 94912 kB
Inactive(file): 49232 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 1044476 kB
SwapFree: 1044476 kB
Dirty: 4 kB
Writeback: 0 kB
AnonPages: 38240 kB
Mapped: 31456 kB
Shmem: 436 kB
Slab: 27108 kB
SReclaimable: 17788 kB
SUnreclaim: 9320 kB
KernelStack: 1440 kB
PageTables: 2512 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 3068520 kB
Committed_AS: 139444 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 11216 kB
VmallocChunk: 34359721092 kB
HardwareCorrupted: 0 kB
AnonHugePages: 4096 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 42944 kB
DirectMap2M: 4151296 kB

uname -a:

Linux lmesz-node2 3.16.0-30-generic #40~14.04.1-Ubuntu SMP Thu Jan 15 17:43:14 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

root@lmesz-node2:/# free -m
total used free shared buffers cached
Mem: 3953 241 3711 0 35 105
-/+ buffers/cache: 100 3852
Swap: 1019 0 1019

Any suggestion ?
Probably it is PEBKAC, but how ?


(Banjot) #2

This error is related to the disk space not RAM. UCP requires a minimum of 1.5GB of RAM and 3GB of disk space. This error is about the size and free space on your virtual disks.


(Meszarosl) #3

Ehhh sorry thanks. Yes I haven’t read it properly. Sorry again yes it works now.