[error] Supervisor riak_pipe_vnode_worker_sup had child undefined started with ...

Ivaylo Panitchkov ipanitchkov at hibernum.com
Wed Jun 6 16:38:05 EDT 2012


Hello everyone,

We started getting the following errors on all servers in the cluster (4 
machines x 1GB RAM, riak_1.0.2-1_amd64.deb):

20:12:36.753 [error] Supervisor riak_pipe_vnode_worker_sup had child 
undefined started with {riak_pipe_vnode_worker,start_link,undefined} at 
<0.8855.0> exit with reason fitting_died in context child_terminated
20:12:36.754 [error] Supervisor riak_pipe_vnode_worker_sup had child 
undefined started with {riak_pipe_vnode_worker,start_link,undefined} at 
<0.8856.0> exit with reason fitting_died in context child_terminated
20:12:36.965 [error] Supervisor riak_pipe_vnode_worker_sup had child 
undefined started with {riak_pipe_vnode_worker,start_link,undefined} at 
<0.8860.0> exit with reason fitting_died in context child_terminated
20:12:36.967 [error] Supervisor riak_pipe_vnode_worker_sup had child 
undefined started with {riak_pipe_vnode_worker,start_link,undefined} at 
<0.8861.0> exit with reason fitting_died in context child_terminated


If we restart the riak service on all machines one by one the error 
message disappears for a while.
Any ideas to solve the issue will be much appreciated.

Thanks in advance,
Ivaylo

REMARK: Replaced the IP addresses for security sake

*root at riak01:~# riak-admin member_status*
Attempting to restart script through sudo -u riak
================================= Membership 
==================================
Status     Ring    Pending    Node
-------------------------------------------------------------------------------
valid      25.0%      --      'riak at IP1'
valid      25.0%      --      'riak at IP2'
valid      25.0%      --      'riak at IP3'
valid      25.0%      --      'riak at IP4'
-------------------------------------------------------------------------------
Valid:4 / Leaving:0 / Exiting:0 / Joining:0 / Down:0

*root at riak01:~# riak-admin ring_status*
Attempting to restart script through sudo -u riak
================================== Claimant 
===================================
Claimant:  'riak at IP1'
Status:     up
Ring Ready: true

============================== Ownership Handoff 
==============================
No pending changes.

============================== Unreachable Nodes 
==============================
All nodes are up and reachable

*root at riak01:~# riak-admin ringready*
Attempting to restart script through sudo -u riak
TRUE All nodes agree on the ring 
['riak at IP1','riak at IP2','riak at IP3','riak at IP4']

*root at riak01:~# riak-admin transfers*
Attempting to restart script through sudo -u riak
No transfers active

-- 
Ivaylo Panitchkov
Software developer
Hibernum Creations Inc.

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