Client acks messages sent between services on the client.

[mol123]

On the client, when service A sends a message to service B (on the same client), the fleetspeak client will send an ACK to the server.

This results in the following logs:

W0901 16:26:11.600130   25931 manager.go:209] system: Temporary error processing message 97e7d6d3e241aaf07944a169d5601d2d39ea62e58b22dfb39576fe015feefe90, will retry: unable to retrieve messages to ack: sql: no rows in result set
W0901 16:26:11.600792   25931 manager.go:209] system: Temporary error processing message 72739dbc6cbfe90879fdc89bcd9f20b05b706e21471a83a402db7f32349636b7, will retry: unable to retrieve messages to ack: sql: no rows in result set
W0901 16:26:12.802231   25931 manager.go:209] system: Temporary error processing message 936cddf4fea77cc8525cfa9273d5f8e65a158abd9e73cd1ae9bc21d9a0e9ce10, will retry: unable to retrieve messages to ack: sql: no rows in result set
W0901 16:26:13.099519   25931 manager.go:209] system: Temporary error processing message fa734a308287b58bf618fa768b54108e54a69e0e81162adadefd7f3b8eeb3193, will retry: unable to retrieve messages to ack: sql: no rows in result set
W0901 16:26:14.601890   25931 manager.go:209] system: Temporary error processing message 129c170732eae60c1738ea92caa4893649b4238a279025e4af802f877bd6109b, will retry: unable to retrieve messages to ack: sql: no rows in result set
W0901 16:26:14.899605   25931 manager.go:209] system: Temporary error processing message e707f680871c375adea0dd13d20c2829b83eab1ae3c6ccd59b7c7d9bf7431f51, will retry: unable to retrieve messages to ack: sql: no rows in result set
W0901 16:26:15.499319   25931 manager.go:209] system: Temporary error processing message 47812d87eae92816856bd4101ffe5cdeb58f533eca7ddbaf49d0fbd38e278c25, will retry: unable to retrieve messages to ack: sql: no rows in result set
W0901 16:26:16.699828   25931 manager.go:209] system: Temporary error processing message 33a77e4c31b6ea3679c0fafc1c40c8615078e32d6eec73f72c8d0a5c6bf2f0a4, will retry: unable to retrieve messages to ack: sql: no rows in result set

The MessageAckData contains empty message IDs.

{       # (null) size=120B
  tag1_message: {       # (null) size=0B
  }     # tag1_message[0]
  tag1_message: {       # (null) size=0B
  }     # tag1_message[1]
  tag1_message: {       # (null) size=0B
  }     # tag1_message[2]
  tag1_message: {       # (null) size=0B
  }     # tag1_message[3]
  tag1_message: {       # (null) size=0B
  }     # tag1_message[4]
[...]

No Acks should be sent in this case, special handling should be implemented around here:

fleetspeak/fleetspeak/src/client/services.go

Line 292 in 616a079

if m.MessageType == "Die" && m.Destination != nil && m.Destination.ServiceName == "system" {