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Posted to user@cassandra.apache.org by Hossein Ghiyasi Mehr <gh...@gmail.com> on 2019/10/24 09:12:39 UTC

Re: [EXTERNAL] Cassandra Export error in COPY command

I tested dsbulk too. But there are many errors:

"[1710949318] Error writing cancel request. This is not critical (the
request will eventually time out server-side)."
"Forcing termination of Connection[/127.0.0.1:9042-14, inFlight=1,
closed=true]. This should not happen and is likely a bug, please report."

I tried with "--executor.maxPerSecond 1000" and
"--driver.socket.readTimeout 3600" options but errors didn't resolve.

How can I export a table data?

On Mon, Sep 23, 2019 at 6:30 AM Durity, Sean R <SE...@homedepot.com>
wrote:

> Copy command tries to export all rows in the table, not just the ones on
> the node. It will eventually timeout if the table is large. It is really
> built for something under 5 million rows or so. Dsbulk (from DataStax) is
> great for this, if you are a customer. Otherwise, you will probably need to
> write an extract of some kind. You can get keys from the sstables, then
> dedupe, then export rows one by one using the keys (kind of painful). How
> large is the table you are trying to export?
>
>
>
> Sean Durity
>
>
>
> *From:* Hossein Ghiyasi Mehr <gh...@gmail.com>
> *Sent:* Saturday, September 21, 2019 8:02 AM
> *To:* user@cassandra.apache.org
> *Subject:* [EXTERNAL] Cassandra Export error in COPY command
>
>
>
> Hi all members,
>
> I want to export (pk, another_int_column) from single node using COPY
> command. But after about 1h 45m, I've got a lot of read errors:
>
>
>
>
>
> I tried this action many times but after maximum 2h, it failed with the
> errors.
>
>
>
> Any idea may help me!
>
> Thanks.
>
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