master replication: what are 'master (searching)' and 'master (replicable)' fields

[Nawab Zada Asad Iqbal <kh...@gmail.com>]

Hi,

From the  solr console, I see  'master (searching)' and 'master
(replicable)' fields on `host/solr/#/core_1/replication` page and wondering
how does it impact me given that I don't have any replicas.

If I don't have any replicas, does it make any impact on performance by
enabling or disabling replication?

Also, when i am indexing new documents, I see `master (searching)` size
growing even when I disable the replication from this UI. What does it
imply?


Regards
Nawab

Re: master replication: what are 'master (searching)' and 'master (replicable)' fields

[Erick Erickson <er...@gmail.com>]

This isn't a problem. The index on the master node in master/slave
(searching) is the last time the _master_ opened a searcher whereas
(replicable) is the last hard commit. These are identical if you to
hard commits with openSearcher=true.

They are different if you have openSearcher=false for your hard
commits and then do a soft commit.

For SolrCloud these are irrelevant distinctions.

For a lot about the difference between commits, see:
https://lucidworks.com/2013/08/23/understanding-transaction-logs-softcommit-and-commit-in-sorlcloud/

Best,
Erick

On Mon, Jul 31, 2017 at 10:33 AM, Nawab Zada Asad Iqbal
<kh...@gmail.com> wrote:
> Hi,
>
> From the  solr console, I see  'master (searching)' and 'master
> (replicable)' fields on `host/solr/#/core_1/replication` page and wondering
> how does it impact me given that I don't have any replicas.
>
> If I don't have any replicas, does it make any impact on performance by
> enabling or disabling replication?
>
> Also, when i am indexing new documents, I see `master (searching)` size
> growing even when I disable the replication from this UI. What does it
> imply?
>
>
> Regards
> Nawab