Installation Tuning
To tune the application for high performance, please provide the recommended CPU and Memory based on your documents, number of collections and number of search users.
Note
Please restart the SearchBlox service once after memory tuning to take effect.
Verify the amount of memory allocated and free for SearchBlox and Opensearch
Verify SearchBlox Memory & CPU
- You can verify the memory allocated to SearchBlox in the Admin Dashboard license page
Tune SearchBlox Memory
Go to path <SearchBlox-Installation-Path>\start.d and edit the file jvm.ini to increase the memory as recommended.
To allocate 12GB, you can update below configuration:
-Xms12g
-Xmx12g
Verify Elasticsearch Memory Allocation
- You can verify the memory allocated to Elasticsearch using the URL: https://localhost:9200/_nodes/jvm?pretty=true
The heap memory allocated in bytes is displayed.

Alternatively, if you use Linux versions of SearchBlox you can use the following curl command
`curl -k -u <elasticsearch-username>:<elasticsearch-password> https://localhost:9200/_nodes/jvm?pretty=true`
Tune Elasticsearch Memory
Go to path <SearchBlox-Installation-Path>\opensearch\config\ and edit the file jvm.options to increase the memory as recommended.
To allocate 10 GB, you can update below configuration:
-Xms10g
-Xmx10g
Improve Concurrent Collections Indexing
- If you plan to crawl multiple collections at the same time, you can improve performance by increasing the Jetty thread values in
<SEARCHBLOX_INSTALLATION_PATH>/start.d/. - By default, minThreadPool is set to 20 and maxThreadPool is set to 100. For multiple collections with large datasets, it is recommended to increase these thread pool values.
- Update the threadpool.ini file by adding the following snippet at the end of the file, and then restart the SearchBlox service
# ---------------------------------------
# Module: threadpool
# Enables the Server thread pool.
# ---------------------------------------
--module=threadpool
### Server Thread Pool Configuration
## Minimum Number of Threads
jetty.threadPool.minThreads=100
## Maximum Number of Threads
jetty.threadPool.maxThreads=450
## Number of reserved threads (-1 for heuristic)
# jetty.threadPool.reservedThreads=-1
## Thread Idle Timeout (in milliseconds)
#jetty.threadPool.idleTimeout=60000
## Whether to Output a Detailed Dump
#jetty.threadPool.detailedDump=false
Updated 28 days ago
