Can't play gazebo state log after filtering

[Deanna Hood]

After running:

gz log -e -f ~/.gear/log/state.log --filter *.pose/*.pose -z 60 > qual_1.log

the state log is not playable.

$ rosrun gazebo_ros gazebo --verbose -p qual_1.log 
Gazebo multi-robot simulator, version 7.4.0
Copyright (C) 2012-2016 Open Source Robotics Foundation.
Released under the Apache 2 License.
http://gazebosim.org

[ INFO] [1484092320.161246258]: Finished loading Gazebo ROS API Plugin.
[Msg] Waiting for master.
[ INFO] [1484092320.161936921]: waitForService: Service [/gazebo/set_physics_properties] has not been advertised, waiting...
[Msg] Connected to gazebo master @ http://127.0.0.1:11345
[Msg] Publicized address: 192.168.148.174
[Msg] 
Log playback:
  Log Version: 1.0
  Gazebo Version: 7.4.0
  Random Seed: 3152875187
  Log Start Time: 0 5000000
  Log End Time: 60 130000000
[Wrn] [msgs.cc:1793] Conversion of sensor type[logical_camera] not suppported.
[Wrn] [msgs.cc:1793] Conversion of sensor type[logical_camera] not suppported.
[Dbg] [ProximityRayPlugin.cc:74] Setting update rate of parent sensor to 50 Hz
[ INFO] [1484092321.389984755]: Laser Plugin (robotNamespace = ariac), Info: Using the 'robotNamespace' param: 'ariac'
[ INFO] [1484092321.390148578]: Starting Laser Plugin (ns = ariac)!
[Dbg] [ProximityRayPlugin.cc:74] Setting update rate of parent sensor to 20 Hz
[ INFO] [1484092321.393675250]: Laser Plugin (ns = ariac)  <tf_prefix_>, set to "ariac"
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]
[ INFO] [1484092321.440484287, 0.025000000]: waitForService: Service [/gazebo/set_physics_properties] is now available.
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]
[ INFO] [1484092321.555233555, 0.105000000]: Physics dynamic reconfigure ready.
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]
[Wrn] [msgs.cc:1793] Conversion of sensor type[logical_camera] not suppported.
[Wrn] [msgs.cc:1793] Conversion of sensor type[logical_camera] not suppported.
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]
[Err] [World.cc:2180] Unable to find model[robot]

The world appears, but the movements that were previously visible through playback don't happen.

[Deanna Hood]

I was filtering the state logs because that's what's done in srcsim but running a simulation for 3 minutes leads to a compressed gazebo state log of 22mB, so filtering might not be necessary at all.

[Deanna Hood]

https://bitbucket.org/osrf/gazebo/issues/2136/gz-log-echo-renders-state-log-unplayable opened and a the gazebo team has a PR with a fix that's currently under review

[Brian Gerkey]

We're waiting on an upstream fix.

We'll revisit this as needed depending on how large the state log files end up being.

[Deanna Hood]

resolved in 8.3/7.11