Linuxteaching
- What is SOLR indexing?
- How do I know if Solr is indexing?
- How long is SOLR indexing?
- What is SOLR and how it works?
- Which is better SOLR or Elasticsearch?
- What does SOLR stand for?
- What is meant by indexing?
- Can SOLR be used as a database?
- Where is SOLR index stored?
- How much RAM does SOLR need?
- How much data can SOLR handle?
- How is SOLR index size calculated?
What is SOLR indexing?
By adding content to an index, we make it searchable by Solr. A Solr index can accept data from many different sources, including XML files, comma-separated value (CSV) files, data extracted from tables in a database, and files in common file formats such as Microsoft Word or PDF.
How do I know if Solr is indexing?
Checking the indexing status using the Core Admin
To check the indexing status, open the Solr Admin and click Core Admin.
How long is SOLR indexing?
We tell users that it takes 5 minutes or so for changes to flow through to SOLR, and so far everyone is happy with that. From my experience indexing big chunks of data might take a while. Index I'm working on have 2m items (size: 10G). Full index takes about 40 hours using DB.
What is SOLR and how it works?
Solr uses Lucene to create an inverted index because it inverts a page-centric data structure (documents ⇒ words) to a keyword-centric structure (word ⇒ documents). It's like the index you see at the end of any book where you can find where certain words occur in the book. ... Solr uses fields to index a document.
Which is better SOLR or Elasticsearch?
Solr fits better into enterprise applications that already implement big data ecosystem tools, such as Hadoop and Spark. ... Elasticsearch is focused more on scaling, data analytics, and processing time series data to obtain meaningful insights and patterns. Its large-scale log analytics performance makes it quite popular.
What does SOLR stand for?
SOLR
| Acronym | Definition |
|---|---|
| SOLR | Solution Reconstituted (medical classification) |
| SOLR | Shareable Online Learning Resources (British Columbia Campus; Canada) |
| SOLR | Searching On Lucene w/Replication (HTTP based search application) |
| SOLR | Student Organization Leadership Retreat (various schools) |
What is meant by indexing?
Indexing is the practice of compiling economic data into a single metric or comparing data to such a metric. There are many indexes in finance that reflect on economic activity or summarize market activity—these become performance benchmarks against which portfolios and fund managers are measured.
Can SOLR be used as a database?
Yes, you can use SOLR as a database but there are some really serious caveats : ... Furthermore, SOLR does NOT stream data --- so you can't lazily iterate through millions of records at a time. This means you have to be very thoughtful when you design large scale data access patterns with SOLR.
Where is SOLR index stored?
Solr stores this index in a directory called index in the data directory.
How much RAM does SOLR need?
As rule of thumb, the minimum size of direct memory recommended is 8G for a production system if docValues is not used in schema and 12-16G if docValues is used. A related configuration is block cache slab count (Cloudera Manager->Solr configuration->slab count) which needs to match direct memory size.
How much data can SOLR handle?
I assume that 5TB data will be 7TB when solr index it according to filter that I use. And then I will add nearly 50MB of data per hour to the same index.
How is SOLR index size calculated?
If you are looking for the physical on-disk size of the index, you can look at 'data/index' folder under 'dataDir' per the definition in solrconfig. xml. For eg. in example index, it is example/solr/data/index folder.
