don't reschedule syncs that failed with a tooManyRetries error

                    + previousSyncOperation);

        }

        // If this sync aborted because the internal sync loop retried too many times then

        //   don't reschedule. Otherwise we risk getting into a retry loop.

        // If the operation succeeded to some extent then retry immediately.

        // If this was a two-way sync then retry soft errors with an exponential backoff.

        // If this was an upward sync then schedule a two-way sync immediately.

        // Otherwise do not reschedule.

        if (syncResult.madeSomeProgress()) {

        if (syncResult.tooManyRetries) {

            Log.d(TAG, "not retrying sync operation because it retried too many times: "

                    + previousSyncOperation);

        } else if (syncResult.madeSomeProgress()) {

            if (isLoggable) {

                Log.d(TAG, "retrying sync operation immediately because "

                        + "even though it had an error it achieved some success");