diff --git a/concourse/scripts/dss_server.ini b/concourse/scripts/dss_server.ini
index cdb281b3000..a759521df42 100644
--- a/concourse/scripts/dss_server.ini
+++ b/concourse/scripts/dss_server.ini
@@ -12,4 +12,4 @@ eloq_store_cloud_store_path=dss-eloqsql-mtr-test/eloqstore
 eloq_store_cloud_access_key=XXXXXX
 eloq_store_cloud_secret_key=XXXXXX
 eloq_store_pages_per_file_shift=2
-eloq_store_buffer_pool_size=8MB
\ No newline at end of file
+eloq_store_buffer_pool_size=100MB
\ No newline at end of file
diff --git a/data_substrate b/data_substrate
index 3be56b82581..aa2703c81b1 160000
--- a/data_substrate
+++ b/data_substrate
@@ -1 +1 @@
-Subproject commit 3be56b825812b9c4183614eff8b01acf87e0a26e
+Subproject commit aa2703c81b190dd7a41a82e1c1c04170b6c28ffd