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From Michael Kjellman <>
Subject Re: continue seeing "Finished hinted handoff of 0 rows to endpoint"
Date Sat, 24 Nov 2012 16:18:28 GMT
Some people (myself included) have seen issues when upgrading from 1.1.2
to 1.1.6 with tombstoned rows in the HintsColumnFamily

Some (mysql included) have fixed this by doing a

nodetool scrub system HintsColumnFamily

On 11/24/12 7:37 AM, "Chuan-Heng Hsiao" <> wrote:

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

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