[JIRA] [android-emulator] (JENKINS-11952) Emulator occasionally hangs indefinitely on startup, unable to connect adb

Wed, 09 Jul 2014 09:02:43 -0700

I have only managed to reproduce the issue once on 2.11.1 and never on any other version of the emulator. Thus I do not think that the problem is specific to 2.11.1.

From my knowledge about how emulator startup works I suspect that the emulator is starting up faster than the ADB server. Then when the emulators gets to the stage where it tries to register with the ADB server it fails because ADB is not ready to accept connections on the ADB socket.

The relevant emulator code in external/qemu/android/qemu-setup.c has a comment that says

/* send a simple message to the ADB host server to tell it we just started.
 * it should be listening on port 5037. if we can't reach it, don't bother
 */


Looking at the android-emulator-plugin code in AndroidEmulator.java the ADB process is started but the code only waits for it to complete after the emulator has been started. It would seem sensible to not start the emulator until ADB has been confirmed to have started. I have a patch that I am testing now and will submit a pull request later today.
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