fix OutOfMemory error

docker-compose.yml

@@ -15,7 +15,7 @@ services:
       resources:
         limits:
           cpus: "0.30"
-          memory: "338MB"
+          memory: "330MB"
   zig1: &zig
     container_name: zig-pay-1
     build: .
@@ -36,7 +36,7 @@ services:
       resources:
         limits:
           cpus: "0.60"
-          memory: "6MB"
+          memory: "10MB"
   zig2: 
     <<: *zig
     container_name: zig-pay-2

src/exchange/exchange_connection.zig

@@ -27,7 +27,7 @@ pub const ExchangeConnection = struct {
     listen_thread: Thread = undefined,
 
     pub fn init(host: []const u8, port: u16) !ExchangeConnection {
-        var buf: [1024]u8 = undefined;
+        var buf: [4096]u8 = undefined;
         var pba = heap.FixedBufferAllocator.init(&buf);
 
         const addrList = try net.getAddressList(pba.allocator(), host, port);

src/main.zig

@@ -15,7 +15,7 @@ pub fn main() !void {
     var post_endpoints = endpoints.EndpointsManager{};
     var put_endpoints = endpoints.EndpointsManager{};
 
-    std.debug.print("Init context: OK\n", .{});
+    std.debug.print("Init context\n", .{});
     try ctx.init();
     defer ctx.deinit();
     std.debug.print("Context: OK\n", .{});

src/services/http_service.zig

@@ -37,7 +37,7 @@ pub const HttpService = struct {
     mutex: Mutex,
 
     pub fn init(id: u64, name: []const u8, host: []const u8, port: u16, num_connections: usize, allocator: Allocator) ServiceError!HttpService {
-        var buf: [1024]u8 = undefined;
+        var buf: [4096]u8 = undefined;
         var pba = heap.FixedBufferAllocator.init(&buf);
 
         const addrList = net.getAddressList(pba.allocator(), host, port) catch return ServiceError.NotFound;