[docs] Fix tablet splitting flag default values and add max_create_ta…

…blets_per_ts

Fix tablet splitting flag defaults and add max_create_tablets_per_ts

docs/content/preview/architecture/docdb-sharding/tablet-splitting.md

@@ -58,6 +58,8 @@ At creation time, you can presplit a table into the desired number of tablets. Y
 
 To presplit a table into a desired number of tablets, you need the start key and end key for each tablet. This makes presplitting slightly different for hash-sharded and range-sharded tables.
 
+The maximum number of tablets allowed at table creation time is controlled by [`max_create_tablets_per_ts`](../../../reference/configuration/yb-master/#max-create-tablets-per-ts). This also limits the number of tablets that can be created by tablet splitting.
+
 #### Hash-sharded tables
 
 Because hash sharding works by applying a hash function on all or a subset of the primary key columns, the byte space of the hash sharded keys is known ahead of time. For example, if you use a 2-byte hash, the byte space would be `[0x0000, 0xFFFF]`, as per the following illustration:
@@ -233,15 +235,15 @@ Automatic tablet splitting happens in three phases, determined by the shard coun
 
 ##### Low phase
 
-In the low phase, each node has fewer than [`tablet_split_low_phase_shard_count_per_node`](../../../reference/configuration/yb-master/#tablet-split-low-phase-shard-count-per-node) shards (8 by default). In this phase, YugabyteDB splits tablets larger than [`tablet_split_low_phase_size_threshold_bytes`](../../../reference/configuration/yb-master/#tablet-split-low-phase-size-threshold-bytes) (512 MB by default).
+In the low phase, each node has fewer than [`tablet_split_low_phase_shard_count_per_node`](../../../reference/configuration/yb-master/#tablet-split-low-phase-shard-count-per-node) shards (1 by default). In this phase, YugabyteDB splits tablets larger than [`tablet_split_low_phase_size_threshold_bytes`](../../../reference/configuration/yb-master/#tablet-split-low-phase-size-threshold-bytes) (128 MiB by default).
 
 ##### High phase
 
-In the high phase, each node has fewer than [`tablet_split_high_phase_shard_count_per_node`](../../../reference/configuration/yb-master/#tablet-split-high-phase-shard-count-per-node) shards (24 by default). In this phase, YugabyteDB splits tablets larger than [`tablet_split_high_phase_size_threshold_bytes`](../../../reference/configuration/yb-master/#tablet-split-high-phase-size-threshold-bytes) (10 GB by default).
+In the high phase, each node has fewer than [`tablet_split_high_phase_shard_count_per_node`](../../../reference/configuration/yb-master/#tablet-split-high-phase-shard-count-per-node) shards (24 by default). In this phase, YugabyteDB splits tablets larger than [`tablet_split_high_phase_size_threshold_bytes`](../../../reference/configuration/yb-master/#tablet-split-high-phase-size-threshold-bytes) (10 GiB by default).
 
 ##### Final phase
 
-When the shard count exceeds the high phase count (determined by `tablet_split_high_phase_shard_count_per_node`, 24 by default), YugabyteDB splits tablets larger than [`tablet_force_split_threshold_bytes`](../../../reference/configuration/yb-master/#tablet-force-split-threshold-bytes) (100 GB by default). This will continue until the [`tablet_split_limit_per_table`](../../../reference/configuration/yb-master/#tablet-split-limit-per-table) tablets per table limit is reached (256 tablets by default; if set to 0, there will be no limit).
+Once the shard count exceeds the high phase count (determined by `tablet_split_high_phase_shard_count_per_node`, 24 by default), YugabyteDB splits tablets larger than [`tablet_force_split_threshold_bytes`](../../../reference/configuration/yb-master/#tablet-force-split-threshold-bytes) (100 GiB by default). The maximum number of tablets is still limited by [`max_create_tablets_per_ts`](../../../reference/configuration/yb-master/#max-create-tablets-per-ts).
 
 #### Post-split compactions
 

docs/content/preview/reference/configuration/yb-master.md

@@ -635,6 +635,12 @@ Default: 1024 * (7/10) (corresponding to an overhead of roughly 700 KiB per tabl
 
 ## Tablet splitting flags
 
+##### --max_create_tablets_per_ts
+
+The maximum number of tablets per tablet server that can be specified when creating a table. This also limits the number of tablets that can be created by tablet splitting.
+
+Default: `50`
+
 ##### --enable_automatic_tablet_splitting
 
 Enables YugabyteDB to [automatically split tablets](../../../architecture/docdb-sharding/tablet-splitting/#automatic-tablet-splitting), based on the specified tablet threshold sizes configured below.
@@ -657,7 +663,7 @@ Default: `1`
 
 The size threshold used to determine if a tablet should be split when the tablet's table is in the "low" phase of automatic tablet splitting. See [`--tablet_split_low_phase_shard_count_per_node`](./#tablet-split-low-phase-shard-count-per-node).
 
-Default: `128_MB`
+Default: `128 MiB`
 
 ##### --tablet_split_high_phase_shard_count_per_node
 
@@ -669,19 +675,19 @@ Default: `24`
 
 The size threshold used to determine if a tablet should be split when the tablet's table is in the "high" phase of automatic tablet splitting. See [`--tablet_split_high_phase_shard_count_per_node`](./#tablet-split-low-phase-shard-count-per-node).
 
-Default: `10_GB`
+Default: `10 GiB`
 
 ##### --tablet_force_split_threshold_bytes
 
 The size threshold used to determine if a tablet should be split even if the table's number of shards puts it past the "high phase".
 
-Default: `100_GB`
+Default: `100 GiB`
 
 ##### --tablet_split_limit_per_table
 
 The maximum number of tablets per table for tablet splitting. Limitation is disabled if this value is set to 0.
 
-Default: `256`
+Default: `0`
 
 ##### --index_backfill_tablet_split_completion_timeout_sec
 

docs/content/preview/releases/ybdb-releases/v2.14.md

@@ -659,7 +659,6 @@ docker pull yugabytedb/yugabyte:2.14.11.0-b35
 * [[17500](https://github.com/yugabyte/yugabyte-db/issues/17500)] [DocDB] Fix test YbAdminSnapshotSchedule.PgsqlCreateTable in case of colocated DBs
 * [[17574](https://github.com/yugabyte/yugabyte-db/issues/17574)] [DocDB] Add EncryptedWritableFile::Size() to fix incorrect WAL footer start offset
 * [[17592](https://github.com/yugabyte/yugabyte-db/issues/17592)] [[17760](https://github.com/yugabyte/yugabyte-db/issues/17760)] [DocDB] Rename WAL file after writing the file header on the disk
-* [[17603](https://github.com/yugabyte/yugabyte-db/issues/17603)] [DocDB] Tablet splitting should respect FLAGS_max_create_tablets_per_ts.
 * [[17663](https://github.com/yugabyte/yugabyte-db/issues/17663)] [DocDB] Clear drive load / leader load maps before appending to them
 * [[17712](https://github.com/yugabyte/yugabyte-db/issues/17712)] [DocDB] Fix system partitions query to not return empty namespace name when its not set at table level
 * [[17726](https://github.com/yugabyte/yugabyte-db/issues/17726)] [DocDB] A workaround for memory leak from InboundCall weak pointers

docs/content/stable/architecture/docdb-sharding/tablet-splitting.md

@@ -58,6 +58,8 @@ At creation time, you can presplit a table into the desired number of tablets. Y
 
 To presplit a table into a desired number of tablets, you need the start key and end key for each tablet. This makes presplitting slightly different for hash-sharded and range-sharded tables.
 
+The maximum number of tablets allowed at table creation time is controlled by [`max_create_tablets_per_ts`](../../../reference/configuration/yb-master/#max-create-tablets-per-ts). This also limits the number of tablets that can be created by tablet splitting.
+
 #### Hash-sharded tables
 
 Because hash sharding works by applying a hash function on all or a subset of the primary key columns, the byte space of the hash sharded keys is known ahead of time. For example, if you use a 2-byte hash, the byte space would be `[0x0000, 0xFFFF]`, as per the following illustration:
@@ -233,15 +235,15 @@ Automatic tablet splitting happens in three phases, determined by the shard coun
 
 ##### Low phase
 
-In the low phase, each node has fewer than [`tablet_split_low_phase_shard_count_per_node`](../../../reference/configuration/yb-master/#tablet-split-low-phase-shard-count-per-node) shards (8 by default). In this phase, YugabyteDB splits tablets larger than [`tablet_split_low_phase_size_threshold_bytes`](../../../reference/configuration/yb-master/#tablet-split-low-phase-size-threshold-bytes) (512 MB by default).
+In the low phase, each node has fewer than [`tablet_split_low_phase_shard_count_per_node`](../../../reference/configuration/yb-master/#tablet-split-low-phase-shard-count-per-node) shards (1 by default). In this phase, YugabyteDB splits tablets larger than [`tablet_split_low_phase_size_threshold_bytes`](../../../reference/configuration/yb-master/#tablet-split-low-phase-size-threshold-bytes) (128 MiB by default).
 
 ##### High phase
 
-In the high phase, each node has fewer than [`tablet_split_high_phase_shard_count_per_node`](../../../reference/configuration/yb-master/#tablet-split-high-phase-shard-count-per-node) shards (24 by default). In this phase, YugabyteDB splits tablets larger than [`tablet_split_high_phase_size_threshold_bytes`](../../../reference/configuration/yb-master/#tablet-split-high-phase-size-threshold-bytes) (10 GB by default).
+In the high phase, each node has fewer than [`tablet_split_high_phase_shard_count_per_node`](../../../reference/configuration/yb-master/#tablet-split-high-phase-shard-count-per-node) shards (24 by default). In this phase, YugabyteDB splits tablets larger than [`tablet_split_high_phase_size_threshold_bytes`](../../../reference/configuration/yb-master/#tablet-split-high-phase-size-threshold-bytes) (10 GiB by default).
 
 ##### Final phase
 
-When the shard count exceeds the high phase count (determined by `tablet_split_high_phase_shard_count_per_node`, 24 by default), YugabyteDB splits tablets larger than [`tablet_force_split_threshold_bytes`](../../../reference/configuration/yb-master/#tablet-force-split-threshold-bytes) (100 GB by default). This will continue until the [`tablet_split_limit_per_table`](../../../reference/configuration/yb-master/#tablet-split-limit-per-table) tablets per table limit is reached (256 tablets by default; if set to 0, there will be no limit).
+When the shard count exceeds the high phase count (determined by `tablet_split_high_phase_shard_count_per_node`, 24 by default), YugabyteDB splits tablets larger than [`tablet_force_split_threshold_bytes`](../../../reference/configuration/yb-master/#tablet-force-split-threshold-bytes) (100 GiB by default). The maximum number of tablets is still limited by [`max_create_tablets_per_ts`](../../../reference/configuration/yb-master/#max-create-tablets-per-ts).
 
 #### Post-split compactions
 

docs/content/stable/reference/configuration/yb-master.md

@@ -635,6 +635,12 @@ Default: 1024 * (7/10) (corresponding to an overhead of roughly 700 KiB per tabl
 
 ## Tablet splitting flags
 
+##### --max_create_tablets_per_ts
+
+The maximum number of tablets per tablet server that can be specified when creating a table. This also limits the number of tablets that can be created by tablet splitting.
+
+Default: `50`
+
 ##### --enable_automatic_tablet_splitting
 
 Enables YugabyteDB to [automatically split tablets](../../../architecture/docdb-sharding/tablet-splitting/#automatic-tablet-splitting), based on the specified tablet threshold sizes configured below.
@@ -657,7 +663,7 @@ Default: `1`
 
 The size threshold used to determine if a tablet should be split when the tablet's table is in the "low" phase of automatic tablet splitting. See [`--tablet_split_low_phase_shard_count_per_node`](./#tablet-split-low-phase-shard-count-per-node).
 
-Default: `128_MB`
+Default: `128 MiB`
 
 ##### --tablet_split_high_phase_shard_count_per_node
 
@@ -669,19 +675,19 @@ Default: `24`
 
 The size threshold used to determine if a tablet should be split when the tablet's table is in the "high" phase of automatic tablet splitting. See [`--tablet_split_high_phase_shard_count_per_node`](./#tablet-split-low-phase-shard-count-per-node).
 
-Default: `10_GB`
+Default: `10 GiB`
 
 ##### --tablet_force_split_threshold_bytes
 
 The size threshold used to determine if a tablet should be split even if the table's number of shards puts it past the "high phase".
 
-Default: `100_GB`
+Default: `100 GiB`
 
 ##### --tablet_split_limit_per_table
 
 The maximum number of tablets per table for tablet splitting. Limitation is disabled if this value is set to 0.
 
-Default: `256`
+Default: `0`
 
 ##### --index_backfill_tablet_split_completion_timeout_sec
 

docs/content/v2.14/architecture/docdb-sharding/tablet-splitting.md

@@ -58,6 +58,8 @@ At creation time, you can presplit a table into the desired number of tablets. Y
 
 In order to presplit a table into a desired number of tablets, you need the start key and end key for each tablet. This makes presplitting slightly different for hash-sharded and range-sharded tables.
 
+The maximum number of tablets allowed at table creation time is controlled by [`max_create_tablets_per_ts`](../../../reference/configuration/yb-master/#max-create-tablets-per-ts). This also limits the number of tablets that can be created by tablet splitting.
+
 ### Hash-sharded tables
 
 Because hash sharding works by applying a hash function on all or a subset of the primary key columns, the byte space of the hash sharded keys is known ahead of time. For example, if you use a 2-byte hash, the byte space would be `[0x0000, 0xFFFF]`.
@@ -237,15 +239,15 @@ Automatic tablet splitting happens in three phases, determined by the shard coun
 
 #### Low Phase
 
-In the low phase, each node has fewer than [`tablet_split_low_phase_shard_count_per_node`](../../../reference/configuration/yb-master/#tablet-split-low-phase-shard-count-per-node) shards (8 by default). In this phase, YugabyteDB splits tablets larger than [`tablet_split_low_phase_size_threshold_bytes`](../../../reference/configuration/yb-master/#tablet-split-low-phase-size-threshold-bytes) (512 MB by default).
+In the low phase, each node has fewer than [`tablet_split_low_phase_shard_count_per_node`](../../../reference/configuration/yb-master/#tablet-split-low-phase-shard-count-per-node) shards (8 by default). In this phase, YugabyteDB splits tablets larger than [`tablet_split_low_phase_size_threshold_bytes`](../../../reference/configuration/yb-master/#tablet-split-low-phase-size-threshold-bytes) (512 MiB by default).
 
 #### High Phase
 
-In the high phase, each node has fewer than [`tablet_split_high_phase_shard_count_per_node`](../../../reference/configuration/yb-master/#tablet-split-high-phase-shard-count-per-node) shards (24 by default). In this phase, YugabyteDB splits tablets larger than [`tablet_split_high_phase_size_threshold_bytes`](../../../reference/configuration/yb-master/#tablet-split-high-phase-size-threshold-bytes) (10 GB by default).
+In the high phase, each node has fewer than [`tablet_split_high_phase_shard_count_per_node`](../../../reference/configuration/yb-master/#tablet-split-high-phase-shard-count-per-node) shards (24 by default). In this phase, YugabyteDB splits tablets larger than [`tablet_split_high_phase_size_threshold_bytes`](../../../reference/configuration/yb-master/#tablet-split-high-phase-size-threshold-bytes) (10 GiB by default).
 
 #### Final Phase
 
-Once the shard count exceeds the high phase count (determined by `tablet_split_high_phase_shard_count_per_node`, 24 by default), YugabyteDB splits tablets larger than [`tablet_force_split_threshold_bytes`](../../../reference/configuration/yb-master/#tablet-force-split-threshold-bytes) (100 GB by default). This will continue until we reach the [`tablet_split_limit_per_table`](../../../reference/configuration/yb-master/#tablet-split-limit-per-table) tablets per table limit (256 tablets by default; if set to 0, there will be no limit).
+Once the shard count exceeds the high phase count (determined by `tablet_split_high_phase_shard_count_per_node`, 24 by default), YugabyteDB splits tablets larger than [`tablet_force_split_threshold_bytes`](../../../reference/configuration/yb-master/#tablet-force-split-threshold-bytes) (100 GiB by default). The maximum number of tablets is still limited by [`max_create_tablets_per_ts`](../../../reference/configuration/yb-master/#max-create-tablets-per-ts).
 
 ### Post-split compactions
 

docs/content/v2.14/reference/configuration/yb-master.md

@@ -497,6 +497,12 @@ Clusters created using `yugabyted` always use a default value of `1`.
 
 ### Tablet splitting flags
 
+##### --max_create_tablets_per_ts
+
+The maximum number of tablets per tablet server that can be specified when creating a table. This also limits the number of tablets that can be created by tablet splitting.
+
+Default: `50`
+
 ##### --enable_automatic_tablet_splitting
 
 Enables YugabyteDB to [automatically split tablets](../../../architecture/docdb-sharding/tablet-splitting/#automatic-tablet-splitting), based on the specified tablet threshold sizes configured below.
@@ -519,7 +525,7 @@ Default: `8`
 
 The size threshold used to determine if a tablet should be split when the tablet's table is in the "low" phase of automatic tablet splitting. See [`--tablet_split_low_phase_shard_count_per_node`](./#tablet-split-low-phase-shard-count-per-node).
 
-Default: `512_MB`
+Default: `512 MiB`
 
 ##### --tablet_split_high_phase_shard_count_per_node
 
@@ -531,19 +537,19 @@ Default: `24`
 
 The size threshold used to determine if a tablet should be split when the tablet's table is in the "high" phase of automatic tablet splitting. See [`--tablet_split_high_phase_shard_count_per_node`](./#tablet-split-low-phase-shard-count-per-node).
 
-Default: `10_GB`
+Default: `10 GiB`
 
 ##### --tablet_force_split_threshold_bytes
 
 The size threshold used to determine if a tablet should be split even if the table's number of shards puts it past the "high phase".
 
-Default: `100_GB`
+Default: `100 GiB`
 
 ##### --tablet_split_limit_per_table
 
 The maximum number of tablets per table for tablet splitting. Limitation is disabled if this value is set to 0.
 
-Default: `256`
+Default: `0`
 
 ##### --index_backfill_tablet_split_completion_timeout_sec