stream and then tar heap snapshot

Author: d-netto

src/ProfileEndpoints.jl

@@ -205,12 +205,27 @@ function handle_heap_snapshot(all_one, stage_path = nothing)
     else
         file_path = joinpath(stage_path, "$(getpid())_$(time_ns()).heapsnapshot")
     end
-    @info "Taking heap snapshot from ProfileEndpoints" all_one file_path
-    file_path = Profile.take_heap_snapshot(file_path, all_one)
+    @info "Taking heap snapshot from ProfileEndpoints" all_one
+    local output_file
+    @static if VERSION.build === ("RAI",) || VERSION >= v"1.11.0-"
+        Profile.take_heap_snapshot(file_path, all_one; streaming=true)
+        # Streaming version of `take_heap_snapshot` returns a bunch of files
+        # that need to be later assembled...
+        nodes_file = "$file_path.nodes"
+        edges_file = "$file_path.edges"
+        strings_file = "$file_path.strings"
+        metadata_json_file = "$file_path.metadata.json"
+        # Tar all of the files together
+        output_file = "$file_path.tar"
+        run(`tar -cf $output_file $nodes_file $edges_file $strings_file $metadata_json_file`)
+    else
+        Profile.take_heap_snapshot(file_path, all_one)
+        output_file = file_path
+    end
     if stage_path === nothing
-        return _http_create_response_with_profile_inlined(read(file_path))
+        return _http_create_response_with_profile_inlined(read(tar_file))
     else
-        return _http_create_response_with_profile_as_file(file_path)
+        return _http_create_response_with_profile_as_file(tar_file)
     end
 end