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From Chuan-Heng Hsiao <hsiao.chuanh...@gmail.com>
Subject continue seeing "Finished hinted handoff of 0 rows to endpoint"
Date Sat, 24 Nov 2012 15:37:52 GMT
Hi Cassandra Devs,

I intended to reduce the size of the db by the following steps:

1. removing all keys from one cf (somehow I can get all keys from the cf).
2. run nodetool cleanup on that cf one-node-by-one-node.

the size of the cf on one node is about 150 G,
I've made another cf with the same data of that cf,
and the new cf is only about 70G. It's the main reason
why I want to remove the data in the original cf.

The reason that I did not directly remove the cf is because it seems
not good to
change the schema after inserting a lot of data.

However, I continue seeing the following in /var/log/cassandra/system.log

INFO [HintedHandoff:1] 2012-11-24 22:58:28,088
HintedHandOffManager.java (line 296) Started hinted handoff for token:
27949589543905115548813332729343195104 with IP: /192.168.0.10
INFO [HintedHandoff:1] 2012-11-24 22:58:28,089
HintedHandOffManager.java (line 392) Finished hinted handoff of 0 rows
to endpoint /192.168.0.10

every ten mins.
(It seems fall into some infinite loop.)

I am wondering whether it is really some infinite loop?
Or it is just dealing with a lot of tombstone data?

Sincerely,
Hsiao

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