Add the GOGC=10 environment variable to the Keepstore service file, to make

Keepstore memory use tightly coupled to the number of buffers it is
configured to use.

No issue #

Arvados-DCO-1.1-Signed-off-by: Ward Vandewege <wvandewege@veritasgenetics.com>

diff --git a/services/keepstore/keepstore.service b/services/keepstore/keepstore.service
index 728c6fded1ac6f372f30b7a4da78da7c6a2f7199..2eba5efbfd242d46109b0f8dfa0092a59c618d62 100644 (file)
--- a/services/keepstore/keepstore.service
+++ b/services/keepstore/keepstore.service
@@ -14,6 +14,11 @@ StartLimitInterval=0
 StartLimitIntervalSec=0
 
 [Service]
+# trigger Go garbage collection when the ratio of freshly allocated data to live data
+# remaining after the previous collection reaches 10% rather than the default 100%, so
+# that Keepstore's memory use is tightly coupled to the number of buffers it is
+# configured to use.
+Environment=GOGC=10
 Type=notify
 ExecStart=/usr/bin/keepstore
 Restart=always