Note (-j1) for building on memory-constrained systems

Per https://jira.mongodb.org/browse/SERVER-68043, some users may have issues building from source on memory-constrained systems. This may manifest as an error: g++: fatal error: Killed signal terminated program cc1plus.
2022-07-20 06:16:37 -04:00
1 changed files with 4 additions and 0 deletions
--- a/docs/building.md
+++ b/docs/building.md
@@ -78,6 +78,10 @@ errors. To ignore the warnings, pass the switch

    $ python3 buildscripts/scons.py install-mongod --disable-warnings-as-errors

+***Note***: On memory-constrained systems, you may run into an error such as `g++: fatal error: Killed signal terminated program cc1plus`. To use less memory during building, pass the parameter `-j1` to scons. This can be incremented to `-j2`, `-j3`, and higher as appropriate to find the fastest working option on your system.
+
+    $ python3 buildscripts/scons.py install-mongod -j1
+    
 To install `mongod` directly to `/opt/mongo`

    $ python3 buildscripts/scons.py DESTDIR=/opt/mongo install-mongod