"Fossies" - the Fresh Open Source Software Archive  

Source code changes of the file "solr/solr-ref-guide/src/making-and-restoring-backups.adoc" between
solr-8.4.0-src.tgz and solr-8.4.1-src.tgz

About: Solr is the search platform from the Apache Lucene project. Its major features include full-text search, hit highlighting, faceted search, caching, replication, and a web admin interface.

making-and-restoring-backups.adoc  (solr-8.4.0-src.tgz):making-and-restoring-backups.adoc  (solr-8.4.1-src.tgz)
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// KIND, either express or implied. See the License for the // KIND, either express or implied. See the License for the
// specific language governing permissions and limitations // specific language governing permissions and limitations
// under the License. // under the License.
If you are worried about data loss, and of course you _should_ be, you need a wa y to back up your Solr indexes so that you can recover quickly in case of catast rophic failure. If you are worried about data loss, and of course you _should_ be, you need a wa y to back up your Solr indexes so that you can recover quickly in case of catast rophic failure.
Solr provides two approaches to backing up and restoring Solr cores or collectio ns, depending on how you are running Solr. If you run in SolrCloud mode, you wil l use the Collections API. If you run Solr in standalone mode, you will use the replication handler. Solr provides two approaches to backing up and restoring Solr cores or collectio ns, depending on how you are running Solr. If you run in SolrCloud mode, you wil l use the Collections API. If you run Solr in standalone mode, you will use the replication handler.
[NOTE] [NOTE]
==== ====
Backups (and Snapshots) capture data that has been <<near-real-time-searching.ad oc#commits-and-searching,_hard_ commited>>. Commiting changes using `softCommit =true` may result in changes that are visible in search results but not included in subsequent backups. Likewise, committing changes using `openSearcher=false` may result in changes committed to disk and included in subsequnt backups, even if they are not currently visible in search results. Backups (and Snapshots) capture data that has been <<near-real-time-searching.ad oc#commits-and-searching,_hard_ commited>>. Commiting changes using `softCommit= true` may result in changes that are visible in search results but not included in subsequent backups.
Likewise, committing changes using `openSearcher=false` may result in changes co mmitted to disk and included in subsequent backups, even if they are not current ly visible in search results.
==== ====
== SolrCloud Backups == SolrCloud Backups
Support for backups when running SolrCloud is provided with the <<collections-ap i.adoc#collections-api,Collections API>>. This allows the backups to be generate d across multiple shards, and restored to the same number of shards and replicas as the original collection. Support for backups when running SolrCloud is provided with the <<collections-ap i.adoc#collections-api,Collections API>>. This allows the backups to be generate d across multiple shards, and restored to the same number of shards and replicas as the original collection.
NOTE: SolrCloud Backup/Restore requires a shared file system mounted at the same path on all nodes, or HDFS. NOTE: SolrCloud Backup/Restore requires a shared file system mounted at the same path on all nodes, or HDFS.
Two commands are available: Two commands are available:
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