index query returns 500 internal server error from webmachine

Sean Ma seanxma at gmail.com
Mon May 21 23:38:39 EDT 2012


The storage backend is leveldb. When I fetch key using $key, the
/var/log/riak/console.log shows the following error.

2012-05-21 11:37:52.756 [error] <0.26673.1> webmachine error:
path="/buckets/mybucket/index/$key/804840_2012022220/804840_2012052111"
{error,{error,{case_clause,
{error,timeout,[[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],
[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],
[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[]]}},
[{riak_kv_wm_index,produce_index_results,2},
{webmachine_resource,resource_call,3},
{webmachine_resource,do,3},
{webmachine_decision_core,resource_call,1},
{webmachine_decision_core,decision,1},
{webmachine_decision_core,handle_request,2},
{webmachine_mochiweb,loop,1},
{mochiweb_http,parse_headers,5}]}}

1. How to fix this issue?
2. For errors similar to this, where to look at to chase down the cause?
i.e. where enable debug logs, etc.

Thanks

Sean
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