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From Maxim Kramarenko <maxi...@trackstudio.com>
Subject Very slow bootstrap
Date Sun, 23 May 2010 07:02:21 GMT
Hello!

I have to 2 node cluster:
[root@cas2 bin]# sh nodetool -h localhost ring
Address       Status     Load          Range 
           Ring
 
47311629213338587668692978196312911227
172.19.0.32   Up         80.06 GB 
15179341530891532433339729554474051162     |<--|
172.19.0.30   Up         169.42 GB 
47311629213338587668692978196312911227     |-->|

Also, I am trying to add another node to a cluser, node 3.

The problems is: node 3 stay in bootstrapping stage 30+ hrs for now, 
load only 5 GB data and this process makes node 1 (and whole cluster) 
unusable for reading data.

[root@cas3 bin]# sh nodetool -h localhost info
31243541907542829729148671132285303944
Load             : 5.54 GB
Generation No    : 1274480008
Uptime (seconds) : 117681
Heap Memory (MB) : 674.74 / 4094.75
[root@cas3 bin]# sh nodetool -h localhost streams
Mode: Bootstrapping
Not sending any streams.
Not receiving any streams.


Each server have 8-24 GB RAM (run it with -Xmx4g or -Xmx20g), 16 cores. 
Why bootstrapping so slow ?

Probably, something wrong with my setup ? Will adding more nodes helps? 
Larger replication factor ?

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