diff --git a/jobs/log-cache/spec b/jobs/log-cache/spec
index f7f58ef3..08e7d5ee 100644
--- a/jobs/log-cache/spec
+++ b/jobs/log-cache/spec
@@ -43,6 +43,9 @@ properties:
     description: "Percentage of system memory to use for the cache. Must be an integer."
     default: 50
 
+  memory_limit_bytes:
+    description: "Overrides memory_limit_percent with a specific size cache in bytes."
+
   max_per_source:
     description: "The maximum number of items stored in LogCache per source."
     default: 100000
diff --git a/jobs/log-cache/templates/bpm.yml.erb b/jobs/log-cache/templates/bpm.yml.erb
index 7e9c6b7e..6d09c4cb 100644
--- a/jobs/log-cache/templates/bpm.yml.erb
+++ b/jobs/log-cache/templates/bpm.yml.erb
@@ -25,6 +25,9 @@ processes:
   env:
     ADDR:        "<%= ":#{p('port')}" %>"
     MEMORY_LIMIT_PERCENT: "<%= p('memory_limit_percent') %>"
+<%- if_p('memory_limit_bytes') do |memory_limit_bytes| %>
+    MEMORY_LIMIT_BYTES: "<%= memory_limit_bytes %>"
+<% end -%>
     MAX_PER_SOURCE: "<%= p('max_per_source') %>"
     INGRESS_BUFFER_SIZE: "<%= p('ingress_buffer_size') %>"
     INGRESS_BUFFER_READ_BATCH_SIZE: "<%= p('ingress_buffer_read_batch_size') %>"