accumulo-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Eric Newton <eric.new...@gmail.com>
Subject Re: Time requirement between shutting down tablet servers?
Date Mon, 06 Aug 2012 16:28:56 GMT
You are killing loggers, which means that recovery cannot take place with
tablets are moved to the remaining servers.

Try:

$ ./bin/accumulo admin stop host:port

This will gracefully stop the tserver and logger on that machine, and flush
the tablets with references to logs on that machine.

-Eric

On Mon, Aug 6, 2012 at 10:25 AM, Steven Troxell <steven.troxell@gmail.com>wrote:

> Is there a problem with shutting down tablet servers in quick succession?
> I am attempting to scale back from 10 tservers to 2 for benchmark testing,
> but I am running into problems where the at some point, the monitor stops
> showing the remaining servers (that I hadn't gotten to kill yet) as
> online.  I see numerous Connection refused, and unable to recover errors in
> my logs, but there's no consistency as to after how many servers shut down
> that I lose everythying.  The only thing I've picked up on is higher
> success rates, when I leave larger gaps of time in between shutting
> servers.  Is this reasonable/expected behavior?
>
> I am using the bin/stop-here.sh command to kill servers.  Alternatively I
> have tried ./bin/stop-all.sh,  then running ./bin/start-here.sh  on master
> and individual tablet servers I want running, but that doesn't seem to
> bring them up
>
> Thanks,
> Steve
>

Mime
View raw message