I guess you could do a version-independent backup with /export handler and store
docs in XML or JSON format. Or you could use streaming and store the entire
index
as JSON tuples, which could then be ingested into another version.
But it is correct that the backup/restore feature of Solr is not
The only hard-and-fast rule is that you must re-index from source when
you upgrade to Solr X+2. Solr (well, Lucene) tries very hard to
maintain one-major-version back-compatibility, so Solr 8 will function
with Solr 7 indexes but _not_ any index _ever touched_ by 6x.
That said, it's usually a
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Walter,
On 9/18/18 11:24, Walter Underwood wrote:
> It isn’t very clear from that page, but the two backup methods make
> a copy of the indexes in a commit-aware way. That is all. One
> method copies them to a new server, the other to files in the
It isn’t very clear from that page, but the two backup methods make a copy
of the indexes in a commit-aware way. That is all. One method copies them
to a new server, the other to files in the data directory.
Database backups generally have a separate backup format which is
independent of the
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Walter,
On 9/17/18 11:39, Walter Underwood wrote:
> Do not use Solr as a database. It was never designed to be a
> database. It is missing a lot of features that are normal in
> databases.
>
> [...] * no real backups (Solr backup is a cold server,
Sent: Tuesday, September 18, 2018 3:12 AM
To: solr-user@lucene.apache.org
Subject: Re: 20180917-Need Apache SOLR support
I have 6 machines，and each machine run a solr server, each solr server use RAM
18GB. Total document number is 3.2billion，1.4TB ，
my collection‘s replica factor is 1。collection
On 9/18/2018 1:11 AM, zhenyuan wei wrote:
I have 6 machines，and each machine run a solr server, each solr server use
RAM 18GB. Total document number is 3.2billion，1.4TB ，
my collection‘s replica factor is 1。collection shard number is
60，currently each shard is 20~30GB。
15 fields per document。
I have 6 machines，and each machine run a solr server, each solr server use
RAM 18GB. Total document number is 3.2billion，1.4TB ，
my collection‘s replica factor is 1。collection shard number is
60，currently each shard is 20~30GB。
15 fields per document。 Query rate is slow now，maybe 100-500
On 9/17/2018 9:05 PM, zhenyuan wei wrote:
Is that means： Small amount of shards gains better performance？
I also have a usecase which contains 3 billion documents，the collection
contains 60 shard now. Is that 10 shard is better than 60 shard?
There is no definite answer to this question. It
Is that means： Small amount of shards gains better performance？
I also have a usecase which contains 3 billion documents，the collection
contains 60 shard now. Is that 10 shard is better than 60 shard?
Shawn Heisey 于2018年9月18日周二 上午12:04写道：
> On 9/17/2018 7:04 AM, KARTHICKRM wrote:
> > Dear
Shawn Heisey kirjoitti 17.9.2018 klo 19.03:
7. If I have Billions of indexes, If the "start" parameter is 10th
Million index and "end" parameter is start+100th index, for this case
any
performance issue will be raised ?
Let's say that you send a request with these parameters, and
On 9/17/2018 7:04 AM, KARTHICKRM wrote:
Dear SOLR Team,
We are beginners to Apache SOLR, We need following clarifications from you.
Much of what I'm going to say is a mirror of what you were already told
by Jan. All of Jan's responses are good.
1. In SOLRCloud, How can we install
Do not use Solr as a database. It was never designed to be a database.
It is missing a lot of features that are normal in databases.
* no transactions
* no rollback (in Solr Cloud)
* no session isolation (one client’s commit will commit all data in progress)
* no schema migration
* no version
I'll highly advice if you can use Java library/SolrJ to connect to Solr
than .Net. There are many things taken care by CloudSolrClient and other
classes when communicated with Solr Cloud having shards/replica's etc and
if your .Net port for SolrJ are not up to date/having all the functionality
> We are beginners to Apache SOLR, We need following clarifications from you.
>
>
>
> 1. In SOLRCloud, How can we install more than one Shared on Single PC?
You typically have one installation of Solr on each server. Then you can add a
collection with multiple shards, specifying how
Dear SOLR Team,
We are beginners to Apache SOLR, We need following clarifications from you.
1. In SOLRCloud, How can we install more than one Shared on Single PC?
2. How many maximum number of shared can be added under on SOLRCloud?
3. In my application there is no
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