TPS is usually transactions per second.

Are you monitoring your cluster, and your memory/heap usage? How are you
coming to the conclusion that it's a networking issue?

Regards,
Mark Walkom

Infrastructure Engineer
Campaign Monitor
email: [email protected]
web: www.campaignmonitor.com


On 25 June 2014 00:33, Julius K <[email protected]> wrote:

> Hi,
>
> I have a strange problem with ES. It's running on a cluster with 64 cores
> etc, so I don't think the power of the hardware is the issue.
>
> I want to index a lot of documents with elasticsearch-hadoop.
> After some problems I now have everything into place and it seems to work
> fine.
>
> So I wrote a simple pig script which loads all the files (~500) and stores
> them into an ES index.
> However, after ~22h the job failed, because of connection problems between
> the nodes.
> But during that time, there wasn't any heavy usage of network bandwidth or
> other ressources.
>
> After that I tried to run the pig script only for one document so I know
> what is indexed and what is missing.
> After about 3 documents indexed well doing this, the jobs started to fail
> again, due to network problems although there wasn't any significant load.
>
> I observed that even after the indexing jobs stopped, there was stuff
> happening with the index. The number of documents kept growing for quite
> some time and the translog operations went up and down being mostly at
> about half a million.
>
> For me this looks like the index takes more time indexing than the pig
> script takes for writing into the index and after some time somewhere a
> buffer gets too full.
>
> Is this possible? I would expect, that in this case elasticsearch-hadoop
> should get throttled.
>
> The only documentation about the translog is what I found here:
> http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/index-modules-translog.html
> which I find a bit little. I still don't know what implications the number
> of translog operations has.
>
> On the linked page it says, I could increase the numbers when doing bulk
> indexing but I don't understand how this would help.
> Also what's TPS?
>
> Best regards
> Julius
>
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