harvest only 7days old logs by default
diff --git a/apache/files/heka.toml b/apache/files/heka.toml
index 0c9ffa1..b4684af 100644
--- a/apache/files/heka.toml
+++ b/apache/files/heka.toml
@@ -7,6 +7,7 @@
 file_match = 'access\.log\.?(?P<Index>\d+)?(.gz)(?P<Index>\d*)''
 priority = ["^Index"]
 decoder = "Sandbox_apache_access"
+oldest_duration: "168h"
 
 [logstreamer_apache_site_access]
 type = "LogstreamerInput"
@@ -15,6 +16,7 @@
 priority = ["^Index"]
 differentiator = ["apache-", "SiteName", "-access"]
 decoder = "Sandbox_apache_access"
+oldest_duration: "168h"
 
 ## Sandboxes