riak 1.2.0-1 / Failed to merge

Sebastian Gerlach sebastian.gerlach at immonet.de
Thu Oct 10 09:05:32 EDT 2013


Hello,

we have a 12 node riak cluster. Since a while we have a log of messages
like this:

"2013-10-10 00:22:04.725 [error] <0.5743.2160> Failed to merge
["/var/lib/riak/bitcask/276886052384956216925307478073202056458252845056",[{async_folds,true},{vnode_vclocks,true},{included_applications,[]},{allow_strfun,false},{reduce_js_vm_count,6},{storage_backend,riak_kv_bitcask_backend},{legacy_keylisting,false},{hook_js_vm_count,2},{listkeys_backpressure,true},{mapred_name,"mapred"},{stats_urlpath,"stats"},{legacy_stats,true},{js_thread_stack,16},{add_paths,[]},{http_url_encoding,on},{map_js_vm_count,8},{mapred_2i_pipe,true},{mapred_system,pipe},{js_max_vm_mem,8},{read_write,true}],["/var/lib/riak/bitcask/276886052384956216925307478073202056458252845056/29.bitcask.data","/var/lib/riak/bitcask/276886052384956216925307478073202056458252845056/4.bitcask.data"]]:
{{badrecord,mstate},[{bitcask,merge_files,1,[{file,"src/bitcask.erl"},{line,835}]},{bitcask,merge1,3,[{file,"src/bitcask.erl"},{line,509}]},{bitcask_merge_worker,do_merge,1,[{file,"src/bitcask_merge_worker.erl"},{line,130}]}]}
"

The provides directory have a lot of files with a size of zero. And the
number of files is much higher (2821 files) than in other directorys (30
files).

Does anyone has a solution or a hint.

Thanks a lot an best regards
Sebastian




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