docs: Update environment-variables.md
@@ -21,11 +21,11 @@ those.
- `ETHEREUM_TRACE_STREAM_STEP_SIZE`: `graph-node` queries traces for a given
block range when a subgraph defines call handlers or block handlers with a
call filter. The value of this variable controls the number of blocks to scan
- in a single RPC request for traces from the Ethereum node.
+ in a single RPC request for traces from the Ethereum node. Defaults to 50.
- `DISABLE_BLOCK_INGESTOR`: set to `true` to disable block ingestion. Leave
unset or set to `false` to leave block ingestion enabled.
-- `ETHEREUM_BLOCK_BATCH_SIZE`: number of Ethereum blocks to request in parallel
- (defaults to 50)
+- `ETHEREUM_BLOCK_BATCH_SIZE`: number of Ethereum blocks to request in parallel.
+ Also limits other parallel requests such such as trace_filter. Defaults to 10.
- `GRAPH_ETHEREUM_MAX_BLOCK_RANGE_SIZE`: Maximum number of blocks to scan for
triggers in each request (defaults to 1000).
- `GRAPH_ETHEREUM_MAX_EVENT_ONLY_RANGE`: Maximum range size for `eth.getLogs`
