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From aaron morton <>
Subject Re: Commit log fills up in less than a minute
Date Sun, 21 Aug 2011 22:10:33 GMT
Yup, you can check the what HH is doing via JMX.

there is a bug in 0.7 that can result in log files not been deleted

Aaron Morton
Freelance Cassandra Developer

On 22/08/2011, at 4:56 AM, Anand Somani wrote:

> We have a lot of space on /data, and looks like it was flushing data fine from file timestamps.

> We did have a bit of goofup with IP's when bringing up a down node (and the commit files
have been around since then). Wonder if that is what triggered it and we have a bunch of hinted
handoff's being backed up.
> For hinted hand off - how do I check if the nodes are collecting hints ( I do have it
turned on). I noticed console bean HintedHandManager, is that the only way to find out.
> On Sun, Aug 21, 2011 at 9:20 AM, Peter Schuller <> wrote:
> > When does the actual commit-data file get deleted.
> >
> > The flush interval on all my memtables is 60 minutes
> They *should* be getting deleted when they no longer contain any data
> that has not been flushed to disk. Are flushes definitely still
> happening? Is it possible flushing has started failing (e.g. out of
> disk)?
> The only way I can think of over nodes directly affecting the commit
> log size on your node would be e.g. hinted handoff resulting in burst
> of writes.
> --
> / Peter Schuller (@scode on twitter)

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