Dear basho team:
I encountered a strange question, we use riak/riak-cs build a cluster, the
cluster has 7 nodes, DB of riak KV is multi(level & bitcask), earch node has
16G RAM.total_leveldb_mem_percent=50.
today we found one node crash down but without crash log, and erlang log has
something like this:
terminate called after throwing an instance of 'std::bad_akkic' wath():
std::bad_alloc
??riak kv version??2.0.5??
[os_mon] memory supervisor port(memsup):Erlang has closed;
[os_mon] cpu supervisor port(cpu_sup):Erlang has close.
And we restart this node and it can work properly again, use the (free -m)
command to view the memory, +-buffered/cache: used=2000Mb available<14000Mb.
and memory status of other nodes are: used 6000Mb~7000Mb.
can you help me analysis of why the node crash down?
and i found other problem on other cluster. under normal conditions??the memory
of used was 4000Mb~5000Mb,but
every 20 minutes will rise once, about doubled, and then returned to normal,
why?
thank you very much!
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????(????)????????????
?????? +86
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