document DELAY_INDEXING, DELTA_MAX_PENDING_CHANGES and ASYNC_DELETE

configuration.md

@@ -63,30 +63,31 @@ GRAPH.CONFIG GET *
 
 Values set using `GRAPH.CONFIG SET` are not persisted after server restart.
 
-## FalkorDB configuration parameters
-
-The following table summarizes which configuration parameters can be set at module load-time and which can also be set at run-time:
-
-| Configuration Parameter                                      | Load-time| Run-time|
-| :-------                                                     | :-----| :-----|
-| [THREAD_COUNT](#thread_count)                                | V     | X     |
-| [CACHE_SIZE](#cache_size)                                    | V     | X     |
-| [OMP_THREAD_COUNT](#omp_thread_count)                        | V     | X     |
-| [NODE_CREATION_BUFFER](#node_creation_buffer)                | V     | X     |
-| [BOLT_PORT](#bolt_port)                                      | V     | X     |
-| [MAX_QUEUED_QUERIES](#max_queued_queries)                    | V     | V     |
-| [TIMEOUT](#timeout) (deprecated in v2.10)                    | V     | V     |
-| [TIMEOUT_MAX](#timeout_max) (since v2.10)                    | V     | V     |
-| [TIMEOUT_DEFAULT](#timeout_default) (since v2.10)            | V     | V     |
-| [RESULTSET_SIZE](#resultset_size)                            | V     | V     |
-| [QUERY_MEM_CAPACITY](#query_mem_capacity)                    | V     | V     |
-| [VKEY_MAX_ENTITY_COUNT](#vkey_max_entity_count)              | V     | V     |
-| [EFFECTS_THRESHOLD](#effects_threshold)                      | V     | V     |
-| [CMD_INFO](#cmd_info)                                        | V     | V     |
-| [MAX_INFO_QUERIES](#max_info_queries)                        | V     | V     |
-| [IMPORT_FOLDER](#import_folder)                              | V     | X     |
-
----
+## FalkorDB Configuration Parameters
+
+FalkorDB supports various configuration parameters that can be set at **load-time** (module initialization) and/or **run-time** (during operation). The table below uses `✓` for supported settings and `✗` for unsupported settings. 
+
+| Configuration Parameter                               | Load-time | Run-time |
+|:------------------------------------------------------|:---------:|:--------:|
+| [THREAD_COUNT](#thread_count)                         |    ✓      |    ✗     |
+| [CACHE_SIZE](#cache_size)                             |    ✓      |    ✗     |
+| [OMP_THREAD_COUNT](#omp_thread_count)                 |    ✓      |    ✗     |
+| [NODE_CREATION_BUFFER](#node_creation_buffer)         |    ✓      |    ✗     |
+| [BOLT_PORT](#bolt_port)                               |    ✓      |    ✗     |
+| [MAX_QUEUED_QUERIES](#max_queued_queries)             |    ✓      |    ✓     |
+| [TIMEOUT](#timeout)                                   |    ✓      |    ✓     |
+| [TIMEOUT_MAX](#timeout_max)                           |    ✓      |    ✓     |
+| [TIMEOUT_DEFAULT](#timeout_default)                   |    ✓      |    ✓     |
+| [RESULTSET_SIZE](#resultset_size)                     |    ✓      |    ✓     |
+| [QUERY_MEM_CAPACITY](#query_mem_capacity)             |    ✓      |    ✓     |
+| [VKEY_MAX_ENTITY_COUNT](#vkey_max_entity_count)       |    ✓      |    ✓     |
+| [EFFECTS_THRESHOLD](#effects_threshold)               |    ✓      |    ✓     |
+| [CMD_INFO](#cmd_info)                                 |    ✓      |    ✓     |
+| [MAX_INFO_QUERIES](#max_info_queries)                 |    ✓      |    ✓     |
+| [IMPORT_FOLDER](#import_folder)                       |    ✓      |    ✗     |
+| [DELAY_INDEXING](#delay_indexing)                     |    ✓      |    ✗     |
+| [DELTA_MAX_PENDING_CHANGES](#delta_max_pending_changes)|    ✓      |    ✗     |
+| [ASYNC_DELETE](#async_delete)                         |    ✓      |    ✗     |
 
 ### THREAD_COUNT
 
@@ -197,7 +198,7 @@ $ redis-cli GRAPH.CONFIG SET MAX_QUEUED_QUERIES 500
 
 ### TIMEOUT
 
-(Deprecated in FalkorDB v2.10 It is recommended to use `TIMEOUT_MAX` and `TIMEOUT_DEFAULT` instead)
+(**Deprecated**. It is recommended to use `TIMEOUT_MAX` and `TIMEOUT_DEFAULT` instead)
 
 The `TIMEOUT` configuration parameter specifies the default maximal execution time for read queries, in milliseconds. Write queries do not timeout.
 
@@ -389,3 +390,37 @@ The import folder configuration specifies an absolute path to a folder from whic
 FalkorDB is allowed to load CSV files.
 
 Defaults to: `/var/lib/FalkorDB/import/`
+
+---
+
+### DELAY_INDEXING
+
+Delay indexing configuration if set to `yes` will delay index construction during
+database load, speeding up the overall loading time, indexes will be constructed
+asynchronously once the DB is fully loaded, during construction time the database
+is fully functional.
+
+Defaults to: `no`
+
+---
+
+### DELTA_MAX_PENDING_CHANGES
+
+Delta max pending changes determines the number of creations & deletions held
+by delta matrices before a matrix flush is required, setting this value too low
+will result in frequent matrix flush which will hurt performance, setting this value
+too high will also effect performance as
+intermediate delta matrices will incur a large number of changes.
+
+Defaults to: `10000`
+
+---
+
+### ASYNC_DELETE
+
+Controls how graphs are discarded, when set to `yes` graph are freed on a dedicated thread
+leaving the server's main thread free,
+otherwise graphs are freed on the server's main thread.
+
+Defaults to `yes`
+