adjust grabbing all keys from redis on the shards

MareSynchronosServer/MareSynchronosServer/Services/SystemInfoService.cs

@@ -36,12 +36,16 @@ public class SystemInfoService : IHostedService, IDisposable
     {
         _logger.LogInformation("System Info Service started");
 
-        _timer = new Timer(PushSystemInfo, null, TimeSpan.Zero, TimeSpan.FromSeconds(5));
+        var timeOut = _config.IsMain ? 5 : 15;
+
+        _timer = new Timer(PushSystemInfo, null, TimeSpan.Zero, TimeSpan.FromSeconds(timeOut));
 
         return Task.CompletedTask;
     }
 
     private void PushSystemInfo(object state)
+    {
+        try
         {
             ThreadPool.GetAvailableThreads(out int workerThreads, out int ioThreads);
 
@@ -72,6 +76,11 @@ public class SystemInfoService : IHostedService, IDisposable
                 _mareMetrics.SetGaugeTo(MetricsAPI.GaugeUsersRegistered, db.Users.AsNoTracking().Count());
             }
         }
+        catch (Exception ex)
+        {
+            _logger.LogWarning(ex, "Failed to push system info");
+        }
+    }
 
 
     public Task StopAsync(CancellationToken cancellationToken)