diff --git a/lib/bb/cooker.py b/lib/bb/cooker.py
index 4b6ba3196..5703eaed4 100644
--- a/lib/bb/cooker.py
+++ b/lib/bb/cooker.py
@@ -336,6 +336,25 @@ cannot be on a NFS mount due to potential NFS locking issues between sqlite clie
 If you need to share the database between several computers, set up a permanently running hash equivalency server
 according to https://docs.yoctoproject.org/dev-manual/hashequivserver.html""".format(bb_hashserve_db_dir))
                 dbdir = bb_hashserve_db_dir or self.data.getVar("PERSISTENT_DIR") or self.data.getVar("CACHE")
+
+                topdir = self.data.getVar("TOPDIR")
+                sstatedir = self.data.getVar("SSTATE_DIR")
+                if (dbdir.startswith(topdir) and not sstatedir.startswith(topdir)):
+                    if utils.is_path_on_nfs(sstatedir):
+                        bb.warn("""Sstate directory is on a shared NFS (it is set via SSTATE_DIR to {}),
+but hash equivalency database is inside this particular build directory {}.
+
+This will prevent sstate reuse, and it is recommended to set up a permanently running hash equivalency server
+according to https://docs.yoctoproject.org/dev-manual/hashequivserver.html""".format(sstatedir, topdir))
+                    else:
+                        bb.warn("""Sstate directory is shared between several builds (it is set via SSTATE_DIR to {}),
+but hash equivalency database is inside this particular build directory {}.
+
+This will prevent sstate reuse, and it is recommended to set the location for the database to a common path
+via BB_HASHSERVE_DB_DIR, for example:
+
+BB_HASHSERVE_DB_DIR = \"${{SSTATE_DIR}}\"""".format(sstatedir, topdir))
+
                 os.makedirs(dbdir, exist_ok=True)
                 dbfile = dbdir + "/hashserv.db"
                 upstream = self.data.getVar("BB_HASHSERVE_UPSTREAM") or None